CVE tracker / CVE-2025-33056

CVE-2025-33056

CVE-2025-33056 is the Windows Local Security Authority (LSA) Denial of Service Vulnerability. Microsoft rates it Important, CVSS 7.5. It is not in CISA's Known Exploited Vulnerabilities catalog. Published June 10, 2025.

Risk summary

HighDenial of Service

7.5

CVSS v3 base

1.8%

EPSS: chance of exploitation in 30 days

High

Severity

Important

Microsoft's rating

Less Likely

Microsoft: exploitation

In CISA KEV

Microsoft describes it: “Improper access control in Microsoft Local Security Authority Server (lsasrv) allows an unauthorized attacker to deny service over a network.”

How to fix it

Microsoft lists 37 affected products and the update that fixes each:

KB5060118 · fixed build 10.0.25398.1665
Windows Server 2022, 23H2 Edition (Server Core installation)
KB5060526 · fixed build 10.0.20348.3807
Windows Server 2022 (Server Core installation), Windows Server 2022
KB5060531 · fixed build 10.0.17763.7434
Windows Server 2019 (Server Core installation), Windows Server 2019, Windows 10 Version 1809 for x64-based Systems, Windows 10 Version 1809 for 32-bit Systems
KB5060533 · fixed build 10.0.19045.5965, 10.0.19044.5965
Windows 10 Version 22H2 for 32-bit Systems, Windows 10 Version 22H2 for ARM64-based Systems, Windows 10 Version 22H2 for x64-based Systems, Windows 10 Version 21H2 for x64-based Systems, Windows 10 Version 21H2 for ARM64-based Systems, and 1 more
KB5060842 · fixed build 10.0.26100.4349
Windows Server 2025, Windows 11 Version 24H2 for x64-based Systems, Windows 11 Version 24H2 for ARM64-based Systems, Windows Server 2025 (Server Core installation)
KB5060998 · fixed build 10.0.10240.21034
Windows 10 for x64-based Systems, Windows 10 for 32-bit Systems
KB5060999 · fixed build 10.0.22631.5472, 10.0.22621.5472
Windows 11 Version 23H2 for x64-based Systems, Windows 11 Version 23H2 for ARM64-based Systems, Windows 11 Version 22H2 for x64-based Systems, Windows 11 Version 22H2 for ARM64-based Systems
KB5061010 · fixed build 10.0.14393.8148
Windows Server 2016 (Server Core installation), Windows Server 2016, Windows 10 Version 1607 for x64-based Systems, Windows 10 Version 1607 for 32-bit Systems
KB5061018 · fixed build 6.3.9600.22620
Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2
KB5061026 · fixed build 6.0.6003.23351
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation), Windows Server 2008 for x64-based Systems Service Pack 2, Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation), Windows Server 2008 for 32-bit Systems Service Pack 2
KB5061059 · fixed build 6.2.9200.25522
Windows Server 2012 (Server Core installation), Windows Server 2012
KB5061078 · fixed build 6.1.7601.27769
Windows Server 2008 R2 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

What Microsoft changed

June 10, 2025: Information published.

Details

Weakness: CWE-284: Improper Access Control
Publicly disclosed (Microsoft): No
Exploited (Microsoft): No
Known exploited (CISA KEV): Not listed
Published: June 10, 2025
Last revised: June 10, 2025

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References

Microsoft Security Update Guide NVD CVE record CWE

From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.