CVE-2025-21295 — Use After Free in Microsoft Windows 10 Version 1507

CWE-416 — Use After Free11 documents9 sources
Severity
8.1HIGHNVD
EPSS
1.7%
top 17.63%
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
PublishedJan 14
Latest updateJul 8

Description

SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | Impact: 5.9

Affected Packages25 packages

▶NVDmicrosoft/windows< 10.0.14393.7699+5
▶NVDmicrosoft/windows_10_1507< 10.0.10240.20890
▶NVDmicrosoft/windows_10_1607< 10.0.14393.7699
▶NVDmicrosoft/windows_10_1809< 10.0.17763.6775
▶NVDmicrosoft/windows_10_21h2< 10.0.19044.5371

Patches

Patch: msrc.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-w9m7-qmvh-fvcw: SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability↗2025-01-14
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CVEList
SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability↗2025-01-14
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📋Vendor Advisories

1
Microsoft
SPNEGO Extended Negotiation (NEGOEX) Security Mechanism Remote Code Execution Vulnerability↗2025-01-14
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🕵️Threat Intelligence

7
Tenable
Microsoft’s July 2025 Patch Tuesday Addresses 128 CVEs (CVE-2025-49719)↗2025-07-08
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Bleepingcomputer
Microsoft January 2025 Patch Tuesday fixes 8 zero-days, 159 flaws↗2025-01-14
▶
Qualys
Microsoft and Adobe Patch Tuesday, January 2025 Security Update Review↗2025-01-14
▶
Talos
Microsoft Patch Tuesday for January 2025 — Snort rules and prominent vulnerabilities↗2025-01-14
▶
Qualys
Microsoft and Adobe Patch Tuesday, January 2025 Security Update Review | Qualys↗2025-01-14
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CVE-2025-21295 — Use After Free in Microsoft | cvebase