asterisk: Asterisk is an open source private branch exchange and telephony toolkit
CVE-2026-57189 is fixed in asterisk on 1 platform by DEBIAN-CVE-2026-57189 (version 1:22.10.1+dfsg+~cs6.17.60671434-1), released October 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.
Asterisk is an open source private branch exchange and telephony toolkit. In affected deployments, an authenticated attacker may cause a `T.140 RED` out-of-bounds write during `generation accumulation` using carefully crafted packets, potentially allowing remote code execution or causing Asterisk to crash. The `chan_sip` channel driver must be installed and configured, and its `textsupport` option must be enabled; `textsupport` defaults to no. `The chan_sip driver was deprecated in Asterisk 20 and completely removed in all later versions.` Repository comparisons verify patch containment in Asterisk 20.20.1, 21.12.3, 22.10.1 and 23.4.1, and Certified Asterisk 20.7-cert11 and 22.8-cert3. The affected release-track scope remains unresolved: structured metadata includes later release tracks even though the advisory says the required `chan_sip` driver was removed there.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| asterisk · Debian 14 | 1:22.10.1+dfsg+~cs6.17.60671434-1 | DEBIAN-CVE-2026-57189 | Oct 28, 2026 |
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