Medium severity6.5NVD Advisory· Published Oct 27, 2026
CVE-2026-57185
CVE-2026-57185
Description
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, an authenticated attacker may crash Asterisk through a buffer over-read in the PJSIP MWI body parser by sending a carefully crafted SIP NOTIFY request. The attacker must pass SIP authentication using either a username/password or source IP address matching. 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
1Patches
Vulnerability mechanics
References
15- github.com/asterisk/asterisk/commit/07aec894a1fdfa7fa989d3ab40fdf0dcda8005bbnvd
- github.com/asterisk/asterisk/commit/1039bed76fa3248f58b6880e4b3f1421ef98b01fnvd
- github.com/asterisk/asterisk/commit/1b2d99d8eb9206d37fd47115996f67fd28bd056fnvd
- github.com/asterisk/asterisk/commit/3100a0d331affbf0995b8c57aaddb31cf3971f6envd
- github.com/asterisk/asterisk/commit/57ce484a45b098de417f19265c95c64497782e36nvd
- github.com/asterisk/asterisk/commit/919f2ffda03329c9014bedcb3c7789d38660c9ednvd
- github.com/asterisk/asterisk/commit/dafff9fb60281817225f1ce6371a5aa2fbb967a4nvd
- github.com/asterisk/asterisk/releases/tag/20.20.1nvd
- github.com/asterisk/asterisk/releases/tag/21.12.3nvd
- github.com/asterisk/asterisk/releases/tag/22.10.1nvd
- github.com/asterisk/asterisk/releases/tag/23.4.1nvd
- github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11nvd
- github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3nvd
- github.com/asterisk/asterisk/security/advisories/GHSA-8jw3-ccr9-xrmfnvd
- github.com/asterisk/asterisk/tree/24.0.0-pre1nvd
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