# CVE-2022-26931: Windows Kerberos Elevation of Privilege Vulnerability

Status: published. Published: 2022-05-10. Updated: 2026-11-02.

Windows Kerberos Elevation of Privilege Vulnerability

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Microsoft / Windows 10 Version 1809: ≥ 10.0.17763.0; < 10.0.17763.2928 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems
- Microsoft / Windows 10 Version 1809: ≥ 10.0.0; < 10.0.17763.2928 (affected, custom). Source: CNA: microsoft; platforms: ARM64-based Systems
- Microsoft / Windows Server 2019: ≥ 10.0.17763.0; < 10.0.17763.2928 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2019 (Server Core installation): ≥ 10.0.17763.0; < 10.0.17763.2928 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows 10 Version 1909: ≥ 10.0.0; < 10.0.18363.2274 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems, ARM64-based Systems
- Microsoft / Windows 10 Version 21H1: ≥ 10.0.0; < 10.0.19043.1706 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems, ARM64-based Systems, 32-bit Systems
- Microsoft / Windows Server 2022: ≥ 10.0.20348.0; < 10.0.20348.707 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows 10 Version 20H2: ≥ 10.0.0; < 10.0.19042.1706 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, ARM64-based Systems
- Microsoft / Windows Server version 20H2: ≥ 10.0.0; < 10.0.19042.1706 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows 11 version 21H2: ≥ 10.0.0; < 10.0.22000.675 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems, ARM64-based Systems
- Microsoft / Windows 10 Version 21H2: ≥ 10.0.19043.0; < 10.0.19043.1706 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, ARM64-based Systems, x64-based Systems
- Microsoft / Windows 10 Version 1507: ≥ 10.0.10240.0; < 10.0.10240.19297 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems
- Microsoft / Windows 10 Version 1607: ≥ 10.0.14393.0; < 10.0.14393.5125 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems
- Microsoft / Windows Server 2016: ≥ 10.0.14393.0; < 10.0.14393.5125 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2016 (Server Core installation): ≥ 10.0.14393.0; < 10.0.14393.5125 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows 7: ≥ 6.1.0; < 6.1.7601.25954 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems
- Microsoft / Windows 7 Service Pack 1: ≥ 6.1.0; < 6.1.7601.25954 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows 8.1: ≥ 6.3.0; < 6.3.9600.20371 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems, ARM64-based Systems
- Microsoft / Windows Server 2008 Service Pack 2: ≥ 6.0.6003.0; < 6.0.6003.21481 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems
- Microsoft / Windows Server 2008 Service Pack 2 (Server Core installation): ≥ 6.0.6003.0; < 6.0.6003.21481 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems
- Microsoft / Windows Server 2008  Service Pack 2: ≥ 6.0.6003.0; < 6.0.6003.21481 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2008 R2 Service Pack 1: ≥ 6.1.7601.0; < 6.1.7601.25954 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2008 R2 Service Pack 1 (Server Core installation): ≥ 6.1.7601.0; < 6.1.7601.25954 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2012: ≥ 6.2.9200.0; < 6.2.9200.23714 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2012 (Server Core installation): ≥ 6.2.9200.0; < 6.2.9200.23714 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2012 R2: ≥ 6.3.9600.0; < 6.3.9600.20371 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2012 R2 (Server Core installation): ≥ 6.3.9600.0; < 6.3.9600.20371 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C; source: CNA: microsoft

- CISA KEV: No listing in collected sources

- EPSS: 2.69% as of 2026-11-02; percentile 85.87%

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26931 (CNA: microsoft; vendor-advisory)

- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-26931 (ADP: CVE; x_refsource_MISC, x_transferred)

## Provenance

- CNA: microsoft: https://www.cve.org/CVERecord?id=CVE-2022-26931; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2022-26931; retrieved 2026-11-02; source updated Not reported

Revision: 79d71d4ef584c888f297e1f34a3fabf8de21adcba2f41dc80765119aa1e3c90a

Canonical: https://y2.dev/cve/CVE-2022-26931

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