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VulnerabilityPublished Updated

CVE-2025-53137: Microsoft Windows 10 Version 1507 · Use After Free

Affects Microsoft Windows 10 Version 1507Source CVE Database V5

0

Not known to be exploited · CVSS 7.0 High.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
7.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Microsoft Windows 10 Version 1507Affected
  • =10.0.10240.0
Fixed in–

AI-suggested

  1. Upgrade all affected systems from Windows 10 Version 1507 (build 10.0.10240.0) to a supported and fully patched version of Windows 10 or later.
  2. Monitor Microsoft security advisories for any patches or workarounds related to CVE-2025-53137 and apply them promptly.
  3. Restrict local access to systems, limiting user privileges to the minimum necessary to reduce the attack surface.
  4. Implement application whitelisting and endpoint protection solutions capable of detecting anomalous privilege escalation attempts.
  5. Conduct regular audits to identify legacy systems still running outdated Windows versions and prioritize their upgrade or isolation.
  6. Employ network segmentation to contain potential compromises and limit lateral movement within internal networks.
  7. Educate IT staff and users about the risks of running unsupported software and the importance of timely updates.
  8. Use vulnerability management tools to continuously scan for this and similar vulnerabilities across the environment.

Description

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

References

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