Microsoft · apparmor: fix missing bounds check on DEFAULT table in verify_dfa()
Affects MicrosoftSource GCVE Database
Not known to be exploited.
Data as of 30 Oct 2026, 07:51 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
Exploitation evidence
Disclosed: evidence found.
CVE published 10 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Security Response Center Microsoft | Affected
| Fixed in– |
Description
A vulnerability identified as CVE-2026-23407 affects Microsoft products, involving a missing bounds check on the DEFAULT table in the verify_dfa() function related to AppArmor. No CVSS score or detailed impact information is provided, and no known exploits are reported in the wild. The affected versions explicitly stated are 2.0 and 3.0.