CVE-2025-59242

CWE-122 — Heap-based Buffer OverflowCWE-1914 documents4 sources
Severity
7.8HIGH
EPSS
0.1%
top 76.78%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
36
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+33 more
Timeline
PublishedOct 14

Description

Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages35 packages

▶NVDmicrosoft/windows< 10.0.17763.7919+4
▶NVDmicrosoft/windows_10_1507< 10.0.10240.21161
▶NVDmicrosoft/windows_10_1607< 10.0.14393.8519
▶NVDmicrosoft/windows_10_1809< 10.0.17763.7919
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6456

🔴Vulnerability Details

2
CVEList
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2025-10-14
▶
GHSA
GHSA-h39w-fq4q-jj6v: Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally↗2025-10-14
▶

📋Vendor Advisories

1
Microsoft
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability↗2025-10-14
▶
CVE-2025-59242 (HIGH CVSS 7.8) | Heap-based buffer overflow in Windo | cvebase.io