Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally.
cve CVE-2025-55233 1 source, 1 claim · Watch
NVD writes:
Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally. the claim
Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally. the claim
- Severity
- HIGH NVD
- CVSS
- 7.8 NVD
- Fixed in
- 10.0.17763.8146, 10.0.19044.6691, 10.0.19045.6691, 10.0.22631.6345, 10.0.26100.7462, 10.0.26200.7462, 10.0.20348.4529, 10.0.25398.2025 NVD
- Vendor
- Microsoft NVD
- Product
- Windows 10 Version 1809 NVD
- CWE
- CWE-125 NVD
How far exploitation has got
- No public code known
- Proof of concept
- Proof of concept, verified
- A Metasploit module
- Exploited in the wild
- Used in ransomware campaigns
Timeline
| 2025-12-09 | first spoke of it: Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally. | NVD |
What it is to other things
| affects | microsoft/windows_10_1809 NVD |
| affects | microsoft/windows_10_21h2 NVD |
| affects | microsoft/windows_10_22h2 NVD |
| affects | microsoft/windows_11_23h2 NVD |
| affects | microsoft/windows_11_24h2 NVD |
| affects | microsoft/windows_11_25h2 NVD |
| affects | microsoft/windows_server_2019 NVD |
| affects | microsoft/windows_server_2022 NVD |
| affects | microsoft/windows_server_2022_23h2 NVD |
| affects | microsoft/windows_server_2025 NVD |
| made_by | microsoft NVD |
In words only, so not counted until a person confirms one:
| affects | microsoft/windows_10_version_1809NVD says “Microsoft · Windows 10 Version 1809” |
Every value, with what each source said and its receipt
| Property | Source | Said | Means here | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Automatable automatable | NVD | no At least one of those steps needs a person. receipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.8146",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 21H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19044.6691",
"status": "affected",
"version": "10.0.19044.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 22H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.19045.6691",
"status": "affected",
"version": "10.0.19045.0",
"versionType": "custom"
}
]
},
{
"platforms": [
"ARM64-based Systems"
],
"product": "Windows 11 version 22H3",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.22631.6345",
"status": "affected",
"version": "10.0.22631.0",
"versionType": "custom"
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]
},
{
"platforms": [
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"product": "Windows 11 Version 23H2",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.22631.6345",
"status": "affected",
"version": "10.0.22631.0",
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}
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},
{
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},
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},
{
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"product": "Windows Server 2019",
"vendor": "Microsoft",
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{
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"status": "affected",
"version": "10.0.17763.0",
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},
{
"platforms": [
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],
"product": "Windows Server 2019 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
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"status": "affected",
"version": "10.0.17763.0",
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]
},
{
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],
"product": "Windows Server 2022",
"vendor": "Microsoft",
"versions": [
{
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"status": "affected",
"version": "10.0.20348.0",
"versionType": "custom"
}
]
},
{
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"product": "Windows Server 2022, 23H2 Edition (Server Core installation)",
"vendor": "Microsoft",
"versions": [
{
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"status": "affected",
"version": "10.0.25398.0",
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},
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"product": "Windows Server 2025",
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"source": "secure@microsoft.com"
}
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"cveTags": [],
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{
"lang": "en",
"value": "Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally."
},
{
"lang": "es",
"value": "Lectura fuera de límites en el Sistema de Archivos Proyectado de Windows permite a un atacante autorizado elevar privilegios localmente."
}
],
"id": "CVE-2025-55233",
"lastModified": "2026-09-30T20:10:00.247",
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}
} | — | ||||||
| CVSS cvss | NVD | 7.8receipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
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},
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}
],
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"metrics": {
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"value": "CWE-125"
}
],
"source": "secure@microsoft.com",
"type": "Secondary"
}
]
}
} | — | ||||||
| CVSS vector cvss_vector | NVD | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hreceipt
What the source handed over{
"cve": {
"affected": [
{
"affectedData": [
{
"platforms": [
"32-bit Systems",
"x64-based Systems"
],
"product": "Windows 10 Version 1809",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.17763.8146",
"status": "affected",
"version": "10.0.17763.0",
"versionType": "custom"
}
]
},
{
"platforms": [
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"ARM64-based Systems",
"x64-based Systems"
],
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"vendor": "Microsoft",
"versions": [
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"versionType": "custom"
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{
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| CWE cwe | NVD | CWE-125receipt
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} | — | ||||||
| Exploitation exploitation | NVD | none No evidence of exploitation, and no public proof of concept. receipt
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| Fixed in fixed_in | NVD | 10.0.17763.8146, 10.0.19044.6691, 10.0.19045.6691, 10.0.22631.6345, 10.0.26100.7462, 10.0.26200.7462, 10.0.20348.4529, 10.0.25398.2025receipt
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} | — | ||||||
| Product product | NVD | Windows 10 Version 1809receipt
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| Severity severity | NVD | HIGH From 7.0 to 8.9. receipt
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| Technical impact technical_impact | NVD | total The attacker gains full control of the component, or all of its information. receipt
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| Vendor vendor | NVD | Microsoftreceipt
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} | — |
Every claim, by kind
vulnerability
| Out-of-bounds read in Windows Projected File System allows an authorized attacker to elevate privileges locally. zetlyn/cve-nvd · 2025-12-09 | automatable no cvss 7.8 cvss_vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H cwe CWE-125 exploitation none fixed_in 10.0.17763.8146, 10.0.19044.6691, 10.0.19045.6691, 10.0.22631.6345, 10.0.26100.7462, 10.0.26200.7462, 10.0.20348.4529, 10.0.25398.2025 product Windows 10 Version 1809 severity HIGH status Analyzed technical_impact total vendor Microsoft | source |