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VulnerabilityPublished Updated

CVE-2025-59206: Microsoft Windows 11 Version 24H2 · Use After Free

Affects Microsoft Windows 11 Version 24H2Source CVE Database V5

0

Not known to be exploited · CVSS 7.4 High.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 31% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Oct 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 11 Version 24H2Affected
  • =10.0.26100.0
Fixed in–

AI-suggested

  1. Monitor Microsoft security advisories closely and apply patches immediately once available.
  2. Restrict local access to systems running Windows 11 Version 24H2 with ReFS deduplication enabled, limiting it to trusted administrators only.
  3. Disable ReFS deduplication if not required, as this reduces the attack surface.
  4. Employ endpoint detection and response (EDR) solutions to monitor for suspicious activities related to privilege escalation attempts.
  5. Conduct regular audits of local user accounts and permissions to minimize the risk of unauthorized local access.
  6. Use application whitelisting and privilege management to limit the ability of untrusted code to execute with elevated privileges.
  7. Maintain robust backup and recovery procedures to mitigate potential data loss or corruption.
  8. Educate system administrators about this vulnerability and the importance of applying updates promptly.

Description

Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability

References

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