Microsoft Local Security Authority Server (lsasrv)
CVE-2022-26925 — Windows LSA Spoofing Vulnerability
Executive Summary
None
Overview
5.9
CVSS MEDIUM
Important
MS Severity
Exploited
MS Exploit Status
Exploitation Detected
MS Exploit Likelihood
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Network
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
None
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 7.1
EPSS Score
0.09823
probability of exploitation in the next 30 days
0.94941 percentile - updated 2026-06-21
View on FIRST.org
Affected Products
28 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Windows 10 for 32-bit Systems | 5013963 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 for x64-based Systems | 5013963 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1607 for 32-bit Systems | 5013952 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1607 for x64-based Systems | 5013952 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1809 for 32-bit Systems | 5013941 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1809 for ARM64-based Systems | 5013941 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1809 for x64-based Systems | 5013941 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1909 for 32-bit Systems | 5013945 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1909 for ARM64-based Systems | 5013945 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 1909 for x64-based Systems | 5013945 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 20H2 for 32-bit Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 20H2 for ARM64-based Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H1 for 32-bit Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H1 for ARM64-based Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H1 for x64-based Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H2 for 32-bit Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H2 for ARM64-based Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 10 Version 21H2 for x64-based Systems | 5013942 (Security Update) |
Important | Spoofing | Yes |
| Windows 11 version 21H2 for ARM64-based Systems | 5013943 (Security Update) |
Important | Spoofing | Yes |
| Windows 11 version 21H2 for x64-based Systems | 5013943 (Security Update) |
Important | Spoofing | Yes |
| Windows 7 for 32-bit Systems Service Pack 1 5014012 (Monthly Rollup) 5013999 (Security Only) Important Spoofing 5012626 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.25954 Yes 5014012 5013999 Windows 7 for x64-based Systems Service Pack 1 5014012 (Monthly Rollup) 5013999 (Security Only) Important Spoofing 5012626 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.25954 Yes 5014012 5013999 Windows 8.1 for 32-bit systems 5014011 (Monthly Rollup) 5014001 (Security Only) Important Spoofing 5012670 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20371 6.3.9600.20365 Yes 5014011 5014001 Windows 8.1 for x64-based systems 5014011 (Monthly Rollup) 5014001 (Security Only) Important Spoofing 5012670 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20371 6.3.9600.20365 Yes 5014011 5014001 Windows RT 8.1 | 5014025 (ServicingStackUpdate) |
Important | Spoofing | Yes |
| Windows Server 2008 for 32-bit Systems Service Pack 2 5014010 (Monthly Rollup) 5014006 (Security Only) Important Spoofing 5012658 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21481 Yes 5014010 5014006 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5014010 (Monthly Rollup) 5014006 (Security Only) Important Spoofing 5012658 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21481 Yes 5014010 5014006 Windows Server 2008 for x64-based Systems Service Pack 2 5014010 (Monthly Rollup) 5014006 (Security Only) Important Spoofing 5012658 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21481 Yes 5014010 5014006 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5014010 (Monthly Rollup) 5014006 (Security Only) Important Spoofing 5012658 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.21481 Yes 5014010 5014006 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5014012 (Monthly Rollup) 5013999 (Security Only) Important Spoofing 5012626 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.25954 Yes 5014012 5013999 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5014012 (Monthly Rollup) 5013999 (Security Only) Important Spoofing 5012626 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.25954 Yes 5014012 5013999 Windows Server 2012 5014017 (Monthly Rollup) 5014018 (Security Only) Important Spoofing 5012650 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.23714 Yes 5014017 5014018 Windows Server 2012 (Server Core installation) 5014017 (Monthly Rollup) 5014018 (Security Only) Important Spoofing 5012650 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.2.9200.23714 Yes 5014017 5014018 Windows Server 2012 R2 5014011 (Monthly Rollup) 5014001 (Security Only) Important Spoofing 5012670 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20371 6.3.9600.20365 Yes 5014011 5014001 Windows Server 2012 R2 (Server Core installation) 5014011 (Monthly Rollup) 5014001 (Security Only) Important Spoofing 5012670 Base: 8.1 Temporal: 7.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.3.9600.20371 6.3.9600.20365 Yes 5014011 5014001 Windows Server 2016 | 5013952 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2016 (Server Core installation) | 5013952 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2019 | 5013941 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2019 (Server Core installation) | 5013941 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2022 | 5013944 (Security Update) |
Important | Spoofing | Yes |
| Windows Server 2022 (Server Core installation) | 5013944 (Security Update) |
Important | Spoofing | Yes |
| Windows Server, version 20H2 (Server Core Installation) | 5013942 (Security Update) |
Important | Spoofing | Yes |
Patches
8 patches
| Article | Type | Restart |
|---|---|---|
5013963 |
Security Update | Yes |
5013952 |
Security Update | Yes |
5013941 |
Security Update | Yes |
5013945 |
Security Update | Yes |
5013942 |
Security Update | Yes |
5013943 |
Security Update | Yes |
5014025 |
ServicingStackUpdate | Yes |
5013944 |
Security Update | Yes |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
Raphael John with Bertelsmann Printing Group
References
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