{"id":"CVE-2026-57188","published":"2026-10-27T18:17:37.367","lastModified":"2026-10-27T18:17:37.367","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 cause a stack buffer overflow in `res_xmpp` `XMPP namespace prefix` handling using carefully crafted packets. The `res_xmpp` module must be loaded, an XMPP connection must be configured in `xmpp.conf`, and the attacker must have an XMPP account on the same or a federated server. 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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/asterisk/asterisk/commit/12072a559f592736a44dd9fbe1594e84714edfb4","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/1328dbb503da4aa11a480a9c28e170f17e5f4e84","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/3c4b08cf94eeaa3faefb3ae6c2d6ce1bd9747a13","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/433102c16b8edfc31d28c96166fef03fe72fb923","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/5e626250628b2579530f3f17e7b0aa37d082873b","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/d570a85e45153a36919ace5d0ab06a195b30f9d1","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/e329a6803ac5214028f98cc5f0b7167d66e32c08","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","tags":[]},{"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-mxgm-8c6f-5p8f","tags":[]},{"url":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","tags":[]}],"exploitRefs":[{"url":"https://github.com/asterisk/asterisk/commit/12072a559f592736a44dd9fbe1594e84714edfb4","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/1328dbb503da4aa11a480a9c28e170f17e5f4e84","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/3c4b08cf94eeaa3faefb3ae6c2d6ce1bd9747a13","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/433102c16b8edfc31d28c96166fef03fe72fb923","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/5e626250628b2579530f3f17e7b0aa37d082873b","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/d570a85e45153a36919ace5d0ab06a195b30f9d1","tags":[]},{"url":"https://github.com/asterisk/asterisk/commit/e329a6803ac5214028f98cc5f0b7167d66e32c08","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11","tags":[]},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","tags":[]},{"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-mxgm-8c6f-5p8f","tags":[]},{"url":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","tags":[]}],"hasPoc":true,"ai":null}