Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2.

zetlyn/cve-nvd vulnerability cve CVE-2025-9185 cpe cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* cpe cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:* cpe cpe:2.3:a:mozilla:thunderbird:*:*:*:*:esr:*:*:* cpe cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:* known 2025-08-19

https://nvd.nist.gov/vuln/detail/CVE-2025-9185

Properties

cvss	8.1 receipt Source NVD Its words `8.1` Read by `field:cve.metrics.cvssMetricV31[].cvssData.baseScore` Said since 2026-10-02 12:00 UTC Last answered 2026-10-05 12:24 UTC Original open at the source What the source handed over { "cve": { "affected": [ { "affectedData": [ { "product": "Firefox", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "115.", "status": "unaffected", "version": "115.27", "versionType": "rpm" }, { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] }, { "product": "Thunderbird", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] } ], "source": "security@mozilla.org" } ], "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "EA30840B-9687-4BD4-B2F6-7557A75D2C5C", "versionEndExcluding": "115.27.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::-:::", "matchCriteriaId": "9F095AEE-D972-4427-A063-5CA441E4D1A5", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "02EDFC2B-306B-4DF6-B2DE-8E2B405727B2", "versionEndExcluding": "128.14.0", "versionStartIncluding": "128.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "4FEE0509-E29D-4C59-A920-60E804499A78", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "DCD60324-B41D-4408-B4EF-274DF15E1249", "versionEndExcluding": "128.14.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::-:::", "matchCriteriaId": "44E5E769-8961-46D3-90E5-DFA27D979F7D", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "28D57F8E-9E36-415C-9A56-8ED3A3B755D4", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2." }, { "lang": "es", "value": "Errores de seguridad de memoria presentes en Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 y Thunderbird 141. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14 y Thunderbird < 140.2." } ], "id": "CVE-2025-9185", "lastModified": "2026-09-30T18:10:00.190", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ], "ssvcV203": [ { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": { "id": "CVE-2025-9185", "options": [ { "exploitation": "none" }, { "automatable": "no" }, { "technicalImpact": "total" } ], "role": "CISA Coordinator", "timestamp": "2025-08-20T03:56:23.417311Z", "version": "2.0.3" } } ] }, "published": "2025-08-19T21:15:31.037", "references": [ { "source": "security@mozilla.org", "tags": [ "Broken Link" ], "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1970154%2C1976782%2C1977166" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-64/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-65/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-66/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-67/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-70/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-71/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-72/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html" } ], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-119" } ], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] } }
product	Firefox receipt Source NVD Its words `Firefox` Read by `field:cve.affected[].affectedData[].product` Said since 2026-10-02 12:00 UTC Last answered 2026-10-05 12:24 UTC Original open at the source What the source handed over { "cve": { "affected": [ { "affectedData": [ { "product": "Firefox", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "115.", "status": "unaffected", "version": "115.27", "versionType": "rpm" }, { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] }, { "product": "Thunderbird", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] } ], "source": "security@mozilla.org" } ], "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "EA30840B-9687-4BD4-B2F6-7557A75D2C5C", "versionEndExcluding": "115.27.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::-:::", "matchCriteriaId": "9F095AEE-D972-4427-A063-5CA441E4D1A5", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "02EDFC2B-306B-4DF6-B2DE-8E2B405727B2", "versionEndExcluding": "128.14.0", "versionStartIncluding": "128.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "4FEE0509-E29D-4C59-A920-60E804499A78", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "DCD60324-B41D-4408-B4EF-274DF15E1249", "versionEndExcluding": "128.14.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::-:::", "matchCriteriaId": "44E5E769-8961-46D3-90E5-DFA27D979F7D", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "28D57F8E-9E36-415C-9A56-8ED3A3B755D4", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2." }, { "lang": "es", "value": "Errores de seguridad de memoria presentes en Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 y Thunderbird 141. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14 y Thunderbird < 140.2." } ], "id": "CVE-2025-9185", "lastModified": "2026-09-30T18:10:00.190", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ], "ssvcV203": [ { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": { "id": "CVE-2025-9185", "options": [ { "exploitation": "none" }, { "automatable": "no" }, { "technicalImpact": "total" } ], "role": "CISA Coordinator", "timestamp": "2025-08-20T03:56:23.417311Z", "version": "2.0.3" } } ] }, "published": "2025-08-19T21:15:31.037", "references": [ { "source": "security@mozilla.org", "tags": [ "Broken Link" ], "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1970154%2C1976782%2C1977166" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-64/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-65/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-66/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-67/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-70/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-71/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-72/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html" } ], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-119" } ], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] } }
status	Modified receipt Source NVD Its words `Modified` Read by `field:cve.vulnStatus` Said since 2026-10-02 12:00 UTC Last answered 2026-10-05 12:24 UTC Original open at the source What the source handed over { "cve": { "affected": [ { "affectedData": [ { "product": "Firefox", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "115.", "status": "unaffected", "version": "115.27", "versionType": "rpm" }, { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] }, { "product": "Thunderbird", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] } ], "source": "security@mozilla.org" } ], "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "EA30840B-9687-4BD4-B2F6-7557A75D2C5C", "versionEndExcluding": "115.27.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::-:::", "matchCriteriaId": "9F095AEE-D972-4427-A063-5CA441E4D1A5", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "02EDFC2B-306B-4DF6-B2DE-8E2B405727B2", "versionEndExcluding": "128.14.0", "versionStartIncluding": "128.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "4FEE0509-E29D-4C59-A920-60E804499A78", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "DCD60324-B41D-4408-B4EF-274DF15E1249", "versionEndExcluding": "128.14.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::-:::", "matchCriteriaId": "44E5E769-8961-46D3-90E5-DFA27D979F7D", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "28D57F8E-9E36-415C-9A56-8ED3A3B755D4", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2." }, { "lang": "es", "value": "Errores de seguridad de memoria presentes en Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 y Thunderbird 141. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14 y Thunderbird < 140.2." } ], "id": "CVE-2025-9185", "lastModified": "2026-09-30T18:10:00.190", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ], "ssvcV203": [ { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": { "id": "CVE-2025-9185", "options": [ { "exploitation": "none" }, { "automatable": "no" }, { "technicalImpact": "total" } ], "role": "CISA Coordinator", "timestamp": "2025-08-20T03:56:23.417311Z", "version": "2.0.3" } } ] }, "published": "2025-08-19T21:15:31.037", "references": [ { "source": "security@mozilla.org", "tags": [ "Broken Link" ], "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1970154%2C1976782%2C1977166" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-64/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-65/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-66/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-67/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-70/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-71/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-72/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html" } ], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-119" } ], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] } }
vendor	Mozilla receipt Source NVD Its words `Mozilla` Read by `field:cve.affected[].affectedData[].vendor` Said since 2026-10-02 12:00 UTC Last answered 2026-10-05 12:24 UTC Original open at the source What the source handed over { "cve": { "affected": [ { "affectedData": [ { "product": "Firefox", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "115.", "status": "unaffected", "version": "115.27", "versionType": "rpm" }, { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] }, { "product": "Thunderbird", "vendor": "Mozilla", "versions": [ { "lessThanOrEqual": "128.", "status": "unaffected", "version": "128.14", "versionType": "rpm" }, { "lessThanOrEqual": "140.", "status": "unaffected", "version": "140.2", "versionType": "rpm" }, { "lessThanOrEqual": "", "status": "unaffected", "version": "142", "versionType": "rpm" } ] } ], "source": "security@mozilla.org" } ], "configurations": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "EA30840B-9687-4BD4-B2F6-7557A75D2C5C", "versionEndExcluding": "115.27.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::-:::", "matchCriteriaId": "9F095AEE-D972-4427-A063-5CA441E4D1A5", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "02EDFC2B-306B-4DF6-B2DE-8E2B405727B2", "versionEndExcluding": "128.14.0", "versionStartIncluding": "128.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:firefox:::::esr:::", "matchCriteriaId": "4FEE0509-E29D-4C59-A920-60E804499A78", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "DCD60324-B41D-4408-B4EF-274DF15E1249", "versionEndExcluding": "128.14.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::-:::", "matchCriteriaId": "44E5E769-8961-46D3-90E5-DFA27D979F7D", "versionEndExcluding": "142.0", "vulnerable": true }, { "criteria": "cpe:2.3:a:mozilla:thunderbird:::::esr:::", "matchCriteriaId": "28D57F8E-9E36-415C-9A56-8ED3A3B755D4", "versionEndExcluding": "140.2.0", "versionStartIncluding": "140.0", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "cveTags": [], "descriptions": [ { "lang": "en", "value": "Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2." }, { "lang": "es", "value": "Errores de seguridad de memoria presentes en Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 y Thunderbird 141. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14 y Thunderbird < 140.2." } ], "id": "CVE-2025-9185", "lastModified": "2026-09-30T18:10:00.190", "metrics": { "cvssMetricV31": [ { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary" }, { "cvssData": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ], "ssvcV203": [ { "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": { "id": "CVE-2025-9185", "options": [ { "exploitation": "none" }, { "automatable": "no" }, { "technicalImpact": "total" } ], "role": "CISA Coordinator", "timestamp": "2025-08-20T03:56:23.417311Z", "version": "2.0.3" } } ] }, "published": "2025-08-19T21:15:31.037", "references": [ { "source": "security@mozilla.org", "tags": [ "Broken Link" ], "url": "https://bugzilla.mozilla.org/buglist.cgi?bug_id=1970154%2C1976782%2C1977166" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-64/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-65/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-66/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-67/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-70/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-71/" }, { "source": "security@mozilla.org", "tags": [ "Vendor Advisory" ], "url": "https://www.mozilla.org/security/advisories/mfsa2025-72/" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00016.html" }, { "source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00018.html" } ], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [ { "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ], "source": "nvd@nist.gov", "type": "Primary" }, { "description": [ { "lang": "en", "value": "CWE-119" } ], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary" } ] } }

Text

Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2. Errores de seguridad de memoria presentes en Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 y Thunderbird 141. Algunos de estos errores mostraron evidencia de corrupción de memoria y presumimos que, con suficiente esfuerzo, algunos de ellos podrían haberse explotado para ejecutar código arbitrario. Esta vulnerabilidad afecta a Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14 y Thunderbird < 140.2.