High 7.5Published Oct 27, 2026

CVE-2026-57186Asterisk: CVE-2022-37325 fix is absent from current chan_ooh323 Q.931 party-number parser

Updated under an hour ago (Oct 28, 2026, 9:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for asterisk

Exploited in the last 30 days

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.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-839
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Oct 28, 2026
First seen by InfoSec Signals: Oct 27, 2026

Affected products

Affected products

asterisk asterisk asterisk:asterisk (from the name)	from 21.0.0-pre1, < 21.12.3; from 22.0.0-pre1, < 22.10.1; from 23.0.0-pre1, < 23.4.1	CNA record
asterisk certified-asterisk asterisk:certified_asterisk (from the name)	from 22.8-cert1-pre1, < 22.8-cert3	CNA record

References

References

https://github.com/asterisk/asterisk/security/advisories/GHSA-h5hv-jmgj-92q2	x-refsource-confirm
https://github.com/asterisk/asterisk/commit/07b9740cbc371ffa7936cf368089fd073250ea7c	x-refsource-misc
https://github.com/asterisk/asterisk/commit/0e776a837106d5d0d14503a53388337931045164	x-refsource-misc
https://github.com/asterisk/asterisk/commit/42d3552d2ac0efbb68c9ec7ade898b6de0bfa033	x-refsource-misc
https://github.com/asterisk/asterisk/commit/46c6c652d1de9bfbb061fab0b1f681cf60660998	x-refsource-misc
https://github.com/asterisk/asterisk/commit/62a7a7037b1a145cabf95895b119cbae4d3c5a4f	x-refsource-misc
https://github.com/asterisk/asterisk/releases/tag/21.12.3	x-refsource-misc
https://github.com/asterisk/asterisk/releases/tag/22.10.1	x-refsource-misc
https://github.com/asterisk/asterisk/releases/tag/23.4.1	x-refsource-misc
https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3	x-refsource-misc
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.