CVE-2025-27478

HIGH

Windows LSA < - Buffer Overflow

Title source: llm

Heap-based buffer overflow in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally.

Core 1

Core References

Vendor Advisory vendor-advisory patch

CVSS v3 7.0

EPSS 0.0018

EPSS Percentile 39.6%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

CWE

CWE-122

Status published

Products (17)

microsoft/windows_10_1507 < 10.0.10240.20978 (2 CPE variants)

microsoft/windows_10_1607 < 10.0.14393.7969 (2 CPE variants)

microsoft/windows_10_1809 < 10.0.17763.7136 (2 CPE variants)

microsoft/windows_10_21h2 < 10.0.19044.5737

microsoft/windows_10_22h2 < 10.0.19045.5737

microsoft/windows_11_22h2 < 10.0.22621.5189

microsoft/windows_11_23h2 < 10.0.22631.5189

microsoft/windows_11_24h2 < 10.0.26100.3775

microsoft/windows_server_2008 (2 CPE variants)

microsoft/windows_server_2008 r2 sp1

... and 7 more

Published Apr 08, 2025

Tracked Since Feb 18, 2026