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CVE-2025-53147VulnerabilityPublished Updated

CVE-2025-53147: 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 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
7.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 38% 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 2026-10-25.

What to do

Affected software

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

AI-suggested

1. Upgrade affected systems to a supported and fully patched version of Windows 10 or later, as Windows 10 Version 1507 is an outdated release with known vulnerabilities. 2. Restrict local access to systems, enforcing strict access controls and monitoring to prevent unauthorized or unnecessary user logins. 3. Employ application whitelisting and endpoint protection solutions that can detect and block suspicious privilege escalation attempts. 4. Implement network segmentation to limit the ability of attackers to move laterally if local access is gained. 5. Conduct regular audits of user privileges and remove or limit administrative rights where not essential. 6. Monitor system logs and security events for unusual activity indicative of exploitation attempts. 7. Educate users and administrators about the risks of legacy systems and the importance of timely updates. 8. Prepare incident response plans specifically addressing privilege escalation attacks to minimize damage if exploitation occurs. 9. If upgrading immediately is not feasible, consider applying temporary workarounds such as disabling or restricting the vulnerable Ancillary Function Driver for WinSock component, if possible, though this may impact network functionality. 10. Stay informed about official patches or security advisories from Microsoft and apply them promptly once available.

Description

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

References

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