CVE-2026-57199
Severity not reportedAsterisk is an open source private branch exchange and telephony toolkit.
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, `app_sms.c` copies externally controlled `SMS` lengths into `fixed in-struct buffers` without sufficient bounds checks, allowing an attacker to corrupt memory or crash Asterisk. The administrator must explicitly use the `SMS` dialplan application, which is useful when routing calls to or from `analog devices`, and must not have ensured that data passed to the application is valid. 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.
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/15c66022dc441ec63d7bd5f53cf7f35db72964be security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/38a2059eb77a91a6b6e76eeba5875c2b96027368 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/59b74276f24ba104d859f3f05897c9b8d835a28a security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/60f4ef3deac6b9af30519b46c13f103264038b82 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/661d6a2fc5cc7744ab9d849ed3c73ae5066386df security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/7048a3841df99e090b9d87246600373581629c98 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/f46f63bd4d33665d336cf8b5998650b915222549 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-q9fr-m7g8-6ph5 security-advisories@github.com
- https://github.com/asterisk/asterisk/tree/24.0.0-pre1 security-advisories@github.com