Medium 6.3Published Oct 26, 2026

CVE-2026-57184Asterisk: Out-of-Bounds Read in Q.931 Information Element Parser (H.323 Addon)

Updated under an hour ago (Oct 30, 2026, 5:30 AM ET)

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It affects asterisk and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Start free and add your stackFree account, 3 products Every CVE for asterisk Exploited in the last 30 days

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, insufficient bounds checking in the `chan_ooh323` `Q.931` `information-element parser` permits an `out-of-bounds read` that may allow an unauthenticated attacker to crash Asterisk using carefully crafted `setup packets`. 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 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

CVSS: 6.3 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness (CWE): CWE-125
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 26, 2026

Affected products

Affected products

asterisk asterisk asterisk:asterisk (from the name)	before 20.20.1; 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)	before 20.7-cert11; from 22.8-cert1-pre1, < 22.8-cert3	CNA record

References

References

https://github.com/asterisk/asterisk/security/advisories/GHSA-746q-794h-cc7f	x-refsource-confirm
https://github.com/asterisk/asterisk/commit/00ebdfbc89ed160ae45a2fc0f67f36e36dae48ee	x-refsource-misc
https://github.com/asterisk/asterisk/commit/437d17fb13503fe9b4e72c35396f0c250d30b0f0	x-refsource-misc
https://github.com/asterisk/asterisk/commit/6dba027f8aea35bf3bbd89371a0cf516b13f8588	x-refsource-misc
https://github.com/asterisk/asterisk/commit/9c776e348374a72589cf27f635cddef45a2a2b90	x-refsource-misc
https://github.com/asterisk/asterisk/commit/ad4a2b3e944afd5a8e9a550bd5f62aeac8680711	x-refsource-misc
https://github.com/asterisk/asterisk/commit/b1284510421a29c72fc4e9a31e4b1e0666a0144f	x-refsource-misc
https://github.com/asterisk/asterisk/releases/tag/20.20.1	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
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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.