CVE-2025-49761 — Use After Free in Microsoft Windows 10 Version 1507

CWE-416 — Use After FreeCWE-1333 — Regex Denial of Service9 documents8 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 73.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
26
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+23 more
Timeline
PublishedAug 12
Latest updateSep 25

Description

Use after free in Windows Kernel 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 Packages25 packages

▶NVDmicrosoft/windows< 10.0.14393.8330+5
▶NVDmicrosoft/windows_10_1507< 10.0.10240.21100
▶NVDmicrosoft/windows_10_1607< 10.0.14393.8330
▶NVDmicrosoft/windows_10_1809< 10.0.17763.7678
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.6216

🔴Vulnerability Details

3
CVEList
Windows Kernel Elevation of Privilege Vulnerability↗2025-08-12
▶
GHSA
GHSA-hhxj-vxv9-cx4f: Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally↗2025-08-12
▶
GHSA
REXML ReDoS vulnerability↗2024-10-28
▶

📋Vendor Advisories

3
Red Hat
rexml: REXML: Denial of Service via inefficient regex parsing↗2025-09-25
▶
Microsoft
Windows Kernel Elevation of Privilege Vulnerability↗2025-08-12
▶
Microsoft
REXML ReDoS vulnerability↗2024-10-08
▶

💬Community

1
HackerOne
CVE-2024-49761: ReDoS vulnerability in REXML↗2024-11-30
▶
CVE-2025-49761 — Use After Free in Microsoft | cvebase