CVE-2025-27478 — Heap-based Buffer Overflow in Microsoft Windows 10 Version 1507

CWE-122 — Heap-based Buffer OverflowCWE-200 — Sensitive Information Exposure6 documents5 sources
Severity
7.0HIGHNVD
EPSS
0.2%
top 60.03%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
27
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+24 more
Timeline
PublishedApr 8

Description

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

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages26 packages

▶NVDmicrosoft/windows< 10.0.14393.7969+5
▶NVDmicrosoft/windows_10_1507< 10.0.10240.20978
▶NVDmicrosoft/windows_10_1607< 10.0.14393.7969
▶NVDmicrosoft/windows_10_1809< 10.0.17763.7136
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.5737

🔴Vulnerability Details

2
CVEList
Windows Local Security Authority (LSA) Elevation of Privilege Vulnerability↗2025-04-08
▶
GHSA
GHSA-2j6p-wf3v-2mvp: Heap-based buffer overflow in Windows Local Security Authority (LSA) allows an authorized attacker to elevate privileges locally↗2025-04-08
▶

📋Vendor Advisories

2
Microsoft
Windows Local Security Authority (LSA) Elevation of Privilege Vulnerability↗2025-04-08
▶
Microsoft
Disclosure of unrelated data in libmemcached-awesome↗2023-03-14
▶

🕵️Threat Intelligence

1
Bleepingcomputer
Microsoft April 2025 Patch Tuesday fixes exploited zero-day, 134 flaws↗2025-04-08
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CVE-2025-27478 — Heap-based Buffer Overflow | cvebase