CVE-2026-57198
Severity not reportedAsterisk is an open source private branch exchange and telephony toolkit.
Asterisk is an open source private branch exchange and telephony toolkit. In affected deployments, an authenticated attacker may cause a `T.140 RED` heap buffer overflow 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.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/20.20.1 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/21.12.3 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/22.10.1 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/23.4.1 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11 security-advisories@github.com
- https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3 security-advisories@github.com
- https://github.com/asterisk/asterisk/security/advisories/GHSA-vfhr-r9x9-c687 security-advisories@github.com
- https://github.com/asterisk/asterisk/tree/24.0.0-pre1 security-advisories@github.com