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CVE-2026-99169VulnerabilityPublished

Microsoft · futex: Fix mm reuse handling for FUT_OFF_MMSHARED

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99169· Medium

Not known to be exploited · fixed in c17cc2027773e8e4913c5ab0fe3a489b1ed5bf81 : update Microsoft when convenient.

Data as of 29 Oct 2026, 11:35 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in c17cc2027773e8e4913c5ab0fe3a489b1ed5bf81, 3267512ad1c2cc0c7768c5b014dc2cceb398a801, 2855ddc6844f527e375e78afb55ec2a5182f23b3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 29 Oct 2026.

What to do

Upgrade Linux to c17cc2027773e8e4913c5ab0fe3a489b1ed5bf81, 3267512ad1c2cc0c7768c5b014dc2cceb398a801 or 2855ddc6844f527e375e78afb55ec2a5182f23b3.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 222993395ed38f3751287f4bd82ef46b3eb3a66d, < c17cc2027773e8e4913c5ab0fe3a489b1ed5bf81
Fixed in
  • c17cc2027773e8e4913c5ab0fe3a489b1ed5bf81
LinuxLinuxAffected
  • ≥ 222993395ed38f3751287f4bd82ef46b3eb3a66d, < 3267512ad1c2cc0c7768c5b014dc2cceb398a801
Fixed in
  • 3267512ad1c2cc0c7768c5b014dc2cceb398a801
LinuxLinuxAffected
  • ≥ 222993395ed38f3751287f4bd82ef46b3eb3a66d, < 2855ddc6844f527e375e78afb55ec2a5182f23b3
Fixed in
  • 2855ddc6844f527e375e78afb55ec2a5182f23b3
LinuxLinuxAffected
  • =5.7
Fixed in–

Description

This vulnerability, identified as CVE-2026-99169, relates to a fix in the futex subsystem addressing memory management reuse handling for FUT_OFF_MMSHARED. It affects Microsoft product version 3.0. No detailed technical impact or exploitation information is provided.

References

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