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CVE-2026-23406VulnerabilityPublished Updated

match_char() macro usage · apparmor: fix side-effect bug

Affects MicrosoftSource GCVE Database

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Not known to be exploited.

Data as of 30 Oct 2026, 07:51 UTC

Severity
Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Apr 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

Affected software

ProductAffectedFixed in
Microsoft Security Response Center MicrosoftAffected
  • =3.0
  • =2.0
Fixed in–

Description

This vulnerability involves a side-effect bug in the match_char() macro usage within AppArmor, a security module. The information provided does not detail the nature of the bug or its impact. The affected versions are 2.0 and 3.0. No CVSS score or exploit information is available.

References

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