CVE-2026-57189
lowpriority · track · 0DEAsterisk 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-2094Digium Certified Asterisk: Mehrere SchwachstellenDeutsch2026-06-25csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in Digium Certified Asterisk und Asterisk ausnutzen, um Speicherfehler und Denial-of-Service-Zustände auszulösen, Informationen offenzulegen, Sitzungen zu übernehmen, Sicherheitsmechanismen und Berechtigungen zu umgehen, beliebige SQL- oder LDAP-Abfragen auszuführen sowie unter bestimmten Voraussetzungen beliebigen Programmcode auszuführen.
sources
Which sources assert this record, and when.
references (15) nvd
External citations — patches, advisories, analysis.
- https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180
- https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261
- https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701
- https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202
- https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4
- https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4
- https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd
- https://github.com/asterisk/asterisk/releases/tag/20.20.1
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