CVE-2026-57184: medium-severity vulnerability in asterisk
Asterisk: Out-of-Bounds Read in Q.931 Information Element Parser (H.323 Addon)
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.6%
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:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Related CVEs — asterisk
In the same product, most dangerous first.
CVE-2023-49294MEDIUMAsterisk Path Traversal vulnerabilityEPSS 45.3%CVE-2023-49786HIGHAsterisk susceptible to Denial of Service via DTLS Hello packets during call initiationEPSS 5.3%CVE-2024-42365HIGHAsterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplanEPSS 4.7%CVE-2026-57193MEDIUMAsterisk: LDAP Filter Injection in res_config_ldap via SIP Username (Unauthenticated Information Disclosure)EPSS 2.0%CVE-2009-3723—CVE-2009-3723EPSS 1.2%CVE-2023-37457HIGHAsterisk's PJSIP_HEADER dialplan function can overwrite memory/cause crash when using 'update'EPSS 1.1%
References
https://github.com/asterisk/asterisk/commit/00ebdfbc89ed160ae45a2fc0f67f36e36dae48eehttps://github.com/asterisk/asterisk/commit/437d17fb13503fe9b4e72c35396f0c250d30b0f0https://github.com/asterisk/asterisk/commit/6dba027f8aea35bf3bbd89371a0cf516b13f8588https://github.com/asterisk/asterisk/commit/9c776e348374a72589cf27f635cddef45a2a2b90https://github.com/asterisk/asterisk/commit/ad4a2b3e944afd5a8e9a550bd5f62aeac8680711https://github.com/asterisk/asterisk/commit/b1284510421a29c72fc4e9a31e4b1e0666a0144fhttps://github.com/asterisk/asterisk/releases/tag/20.20.1https://github.com/asterisk/asterisk/releases/tag/21.12.3https://github.com/asterisk/asterisk/releases/tag/22.10.1https://github.com/asterisk/asterisk/releases/tag/23.4.1https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3