CVE-2026-57195
highAsterisk 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, a NULL pointer dereference in the `Asterisk Manager Interface (AMI)` may allow an unauthenticated attacker to crash Asterisk when `Digest Authentication` is used via `HTTP`. The Asterisk `HTTP` web server, AMI, and AMI access via `HTTP` must all be enabled; each is disabled by default. The attacker must be able to connect to the `HTTP` server, which binds only to `127.0.0.1` by default even when enabled. 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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/10c5b2efcacab03bf04a229f81cc24e76fe42c41 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/362ef847e7e057b7626e476ddcfe7328ea314db4 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/5d5d8d8ef7f16774820b1889ae73d8d2ab14af45 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/87a1f43e4c465b885163665aa89172ed0f392663 security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/a1fcfdf9b91ed58cc8fb9da8d135da60bae7345d security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/abba42c58fee2226a709583afdbeec75cf1dde8b security-advisories@github.com
- https://github.com/asterisk/asterisk/commit/fff89162cdd702e8a143701f138edd8dceab154f 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-3rhj-hhw7-m6fw security-advisories@github.com
- https://github.com/asterisk/asterisk/tree/24.0.0-pre1 security-advisories@github.com