CVE-2026-57184 Asterisk: Out-of-Bounds Read in Q.931 Information Element Parser (H.323 Addon)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2026-57184?
CVE-2026-57184 is a medium-severity vulnerability in asterisk, published on 26 Oct 2026.
Official description
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.
Weakness: CWE-125
Which versions are affected by CVE-2026-57184?
How do I fix CVE-2026-57184?
Upgrade to a fixed version.
Is CVE-2026-57184 being exploited?
There is no known exploitation of CVE-2026-57184 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-57184, GHSA-746q-794h-cc7f, UBUNTU-CVE-2026-57184.