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CVE-2025-49762VulnerabilityPublished Updated

CVE-2025-49762: Microsoft Windows 10 Version 1507 · Race Condition

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
0.2% chance of exploitation in 30 days – higher than 19% 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 Upgrade affected systems to a supported and patched version of Windows 10 or later, as Windows 10 Version 1507 is outdated and no longer supported by Microsoft. 2. Apply any security updates or patches Microsoft releases addressing this vulnerability as soon as they become available. 3. Restrict local access to systems running legacy Windows 10 versions to trusted personnel only, minimizing the risk of local exploitation. 4. Implement strict access controls and endpoint protection solutions that can detect and block privilege escalation attempts. 5. Employ application whitelisting and behavior monitoring to identify suspicious activities related to WinSock or network driver manipulation. 6. Conduct regular vulnerability assessments and penetration testing focusing on privilege escalation vectors. 7. Educate IT staff and users about the risks of running unsupported operating systems and encourage timely upgrades. 8. Segment networks to limit lateral movement opportunities if a local compromise occurs. 9. Monitor system logs and security alerts for anomalies indicative of race condition exploitation attempts. 10. Develop and test incident response plans specifically addressing privilege escalation scenarios.

Description

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

References

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