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libxfont2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client

zetlyn/cve-redhat vulnerability cve CVE-2026-44950 known 2026-08-05

https://access.redhat.com/security/cve/CVE-2026-44950

Properties

cvss7.5
receipt
Source
Red Hat
Its words
7.5
Read by
field:cvss3_score
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-44950",
  "CWE": "CWE-120",
  "advisories": [
    "RHSA-2026:55447",
    "RHSA-2026:55446",
    "RHSA-2026:62123",
    "RHSA-2026:59311",
    "RHSA-2026:62231",
    "RHSA-2026:61995",
    "RHSA-2026:59312",
    "RHSA-2026:61390",
    "RHSA-2026:61756",
    "RHSA-2026:55448",
    "RHSA-2026:61755"
  ],
  "affected_packages": [
    "libXfont2-0:2.0.3-12.el9_6.3",
    "libXfont2-0:2.0.3-12.el9_8.3",
    "libXfont2-0:2.0.3-12.el9_4.3",
    "libXfont2-0:2.0.3-3.el7_9",
    "libXfont2-0:2.0.3-2.el8_6.2",
    "libXfont2-0:2.0.6-5.el10_2.3",
    "libXfont2-0:2.0.3-2.el8_8.2",
    "libXfont2-0:2.0.3-12.el9_2.3",
    "libXfont2-0:2.0.3-2.el8_10.3",
    "libXfont2-0:2.0.3-2.el8_4.2",
    "libXfont2-0:2.0.6-5.el10_0.2"
  ],
  "bugzilla": "2509622",
  "bugzilla_description": "libxfont2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-05T10:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-44950.json",
  "severity": "important"
}
cvss_vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
receipt
Source
Red Hat
Its words
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Read by
field:cvss3_scoring_vector
Said since
2026-10-06 13:01 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
2026-10-06 13:01 UTCCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
2026-09-29 09:44 UTC—
What the source handed over
{
  "CVE": "CVE-2026-44950",
  "CWE": "CWE-120",
  "advisories": [
    "RHSA-2026:55447",
    "RHSA-2026:55446",
    "RHSA-2026:62123",
    "RHSA-2026:59311",
    "RHSA-2026:62231",
    "RHSA-2026:61995",
    "RHSA-2026:59312",
    "RHSA-2026:61390",
    "RHSA-2026:61756",
    "RHSA-2026:55448",
    "RHSA-2026:61755"
  ],
  "affected_packages": [
    "libXfont2-0:2.0.3-12.el9_6.3",
    "libXfont2-0:2.0.3-12.el9_8.3",
    "libXfont2-0:2.0.3-12.el9_4.3",
    "libXfont2-0:2.0.3-3.el7_9",
    "libXfont2-0:2.0.3-2.el8_6.2",
    "libXfont2-0:2.0.6-5.el10_2.3",
    "libXfont2-0:2.0.3-2.el8_8.2",
    "libXfont2-0:2.0.3-12.el9_2.3",
    "libXfont2-0:2.0.3-2.el8_10.3",
    "libXfont2-0:2.0.3-2.el8_4.2",
    "libXfont2-0:2.0.6-5.el10_0.2"
  ],
  "bugzilla": "2509622",
  "bugzilla_description": "libxfont2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-05T10:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-44950.json",
  "severity": "important"
}
cweCWE-120
receipt
Source
Red Hat
Its words
CWE-120
Read by
field:CWE
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-44950",
  "CWE": "CWE-120",
  "advisories": [
    "RHSA-2026:55447",
    "RHSA-2026:55446",
    "RHSA-2026:62123",
    "RHSA-2026:59311",
    "RHSA-2026:62231",
    "RHSA-2026:61995",
    "RHSA-2026:59312",
    "RHSA-2026:61390",
    "RHSA-2026:61756",
    "RHSA-2026:55448",
    "RHSA-2026:61755"
  ],
  "affected_packages": [
    "libXfont2-0:2.0.3-12.el9_6.3",
    "libXfont2-0:2.0.3-12.el9_8.3",
    "libXfont2-0:2.0.3-12.el9_4.3",
    "libXfont2-0:2.0.3-3.el7_9",
    "libXfont2-0:2.0.3-2.el8_6.2",
    "libXfont2-0:2.0.6-5.el10_2.3",
    "libXfont2-0:2.0.3-2.el8_8.2",
    "libXfont2-0:2.0.3-12.el9_2.3",
    "libXfont2-0:2.0.3-2.el8_10.3",
    "libXfont2-0:2.0.3-2.el8_4.2",
    "libXfont2-0:2.0.6-5.el10_0.2"
  ],
  "bugzilla": "2509622",
  "bugzilla_description": "libxfont2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-05T10:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-44950.json",
  "severity": "important"
}
packageslibXfont2-0:2.0.3-12.el9_6.3, libXfont2-0:2.0.3-12.el9_8.3, libXfont2-0:2.0.3-12.el9_4.3, libXfont2-0:2.0.3-3.el7_9, libXfont2-0:2.0.3-2.el8_6.2, libXfont2-0:2.0.6-5.el10_2.3, libXfont2-0:2.0.3-2.el8_8.2, libXfont2-0:2.0.3-12.el9_2.3, libXfont2-0:2.0.3-2.el8_10.3, libXfont2-0:2.0.3-2.el8_4.2, libXfont2-0:2.0.6-5.el10_0.2
receipt
Source
Red Hat
Its words
libXfont2-0:2.0.3-12.el9_6.3, libXfont2-0:2.0.3-12.el9_8.3, libXfont2-0:2.0.3-12.el9_4.3, libXfont2-0:2.0.3-3.el7_9, libXfont2-0:2.0.3-2.el8_6.2, libXfont2-0:2.0.6-5.el10_2.3, libXfont2-0:2.0.3-2.el8_8.2, libXfont2-0:2.0.3-12.el9_2.3, libXfont2-0:2.0.3-2.el8_10.3, libXfont2-0:2.0.3-2.el8_4.2, libXfont2-0:2.0.6-5.el10_0.2
Read by
field:affected_packages[]
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-44950",
  "CWE": "CWE-120",
  "advisories": [
    "RHSA-2026:55447",
    "RHSA-2026:55446",
    "RHSA-2026:62123",
    "RHSA-2026:59311",
    "RHSA-2026:62231",
    "RHSA-2026:61995",
    "RHSA-2026:59312",
    "RHSA-2026:61390",
    "RHSA-2026:61756",
    "RHSA-2026:55448",
    "RHSA-2026:61755"
  ],
  "affected_packages": [
    "libXfont2-0:2.0.3-12.el9_6.3",
    "libXfont2-0:2.0.3-12.el9_8.3",
    "libXfont2-0:2.0.3-12.el9_4.3",
    "libXfont2-0:2.0.3-3.el7_9",
    "libXfont2-0:2.0.3-2.el8_6.2",
    "libXfont2-0:2.0.6-5.el10_2.3",
    "libXfont2-0:2.0.3-2.el8_8.2",
    "libXfont2-0:2.0.3-12.el9_2.3",
    "libXfont2-0:2.0.3-2.el8_10.3",
    "libXfont2-0:2.0.3-2.el8_4.2",
    "libXfont2-0:2.0.6-5.el10_0.2"
  ],
  "bugzilla": "2509622",
  "bugzilla_description": "libxfont2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-05T10:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-44950.json",
  "severity": "important"
}
severityimportant
A flaw that can easily compromise confidentiality, integrity or availability.
receipt
Source
Red Hat
Its words
important
Read by
field:severity
Said since
2026-09-29 09:44 UTC
Last answered
2026-10-06 13:02 UTC
Original
open at the source
What the source handed over
{
  "CVE": "CVE-2026-44950",
  "CWE": "CWE-120",
  "advisories": [
    "RHSA-2026:55447",
    "RHSA-2026:55446",
    "RHSA-2026:62123",
    "RHSA-2026:59311",
    "RHSA-2026:62231",
    "RHSA-2026:61995",
    "RHSA-2026:59312",
    "RHSA-2026:61390",
    "RHSA-2026:61756",
    "RHSA-2026:55448",
    "RHSA-2026:61755"
  ],
  "affected_packages": [
    "libXfont2-0:2.0.3-12.el9_6.3",
    "libXfont2-0:2.0.3-12.el9_8.3",
    "libXfont2-0:2.0.3-12.el9_4.3",
    "libXfont2-0:2.0.3-3.el7_9",
    "libXfont2-0:2.0.3-2.el8_6.2",
    "libXfont2-0:2.0.6-5.el10_2.3",
    "libXfont2-0:2.0.3-2.el8_8.2",
    "libXfont2-0:2.0.3-12.el9_2.3",
    "libXfont2-0:2.0.3-2.el8_10.3",
    "libXfont2-0:2.0.3-2.el8_4.2",
    "libXfont2-0:2.0.6-5.el10_0.2"
  ],
  "bugzilla": "2509622",
  "bugzilla_description": "libxfont2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client",
  "cvss3_score": "7.5",
  "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
  "cvss_score": null,
  "cvss_scoring_vector": null,
  "package_state": null,
  "public_date": "2026-08-05T10:00:00Z",
  "resource_url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-44950.json",
  "severity": "important"
}

Text

libxfont2: libXfont2: Privilege Escalation via Heap Buffer Overflow in Font Server Client