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CVE-2026-57186

7.5 high SSVC exploitation: none Published
NVD · CVE.org

Asterisk is an open source private branch exchange and telephony toolkit. From 21.0.0-pre1 until Asterisk 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3, the `chan_ooh323` `Q.931 party-number parser` lacks the `CVE-2022-37325` fix because that fix was never forward-ported from Asterisk 20 to later versions. Malformed Q.931 elements in an `OOH323 request` can therefore crash Asterisk. This issue affects Asterisk versions greater than 20. The `chan_ooh323` addon channel driver must be explicitly compiled and installed, which is not the default, and its port must be publicly reachable. This issue is fixed in Asterisk 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 7

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 16:13
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 17:18
  3. StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 16:13
  4. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 14:18
  5. StatusReceived → PublishedNVD modified 2026-10-27 21:21
  6. StatusPublished → ReceivedNVD modified 2026-10-27 22:17
  7. First seenCVSS 7.5 · asteriskNVD modified 2026-10-27 21:21

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 11