CVE-2025-59206: Microsoft Windows 11 Version 24H2 · Use After Free
Affects Microsoft Windows 11 Version 24H2Source CVE Database V5
Not known to be exploited · CVSS 7.4 High.
Data as of 26 Oct 2026, 14:05 UTC
- 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:CExploitation evidence
Disclosed: evidence found.
CVE published 14 Oct 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 11 Version 24H2 | Affected
| Fixed in– |
AI-suggested
- Monitor Microsoft security advisories closely and apply patches immediately once available.
- Restrict local access to systems running Windows 11 Version 24H2 with ReFS deduplication enabled, limiting it to trusted administrators only.
- Disable ReFS deduplication if not required, as this reduces the attack surface.
- Employ endpoint detection and response (EDR) solutions to monitor for suspicious activities related to privilege escalation attempts.
- Conduct regular audits of local user accounts and permissions to minimize the risk of unauthorized local access.
- Use application whitelisting and privilege management to limit the ability of untrusted code to execute with elevated privileges.
- Maintain robust backup and recovery procedures to mitigate potential data loss or corruption.
- 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