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.
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Affected Vendors & Products
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History
Fri, 30 Oct 2026 21:30:00 +0000
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ssvc
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Tue, 27 Oct 2026 20:00:00 +0000
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Asterisk
Asterisk asterisk Asterisk certified Asterisk |
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| Vendors & Products |
Asterisk
Asterisk asterisk Asterisk certified Asterisk |
Tue, 27 Oct 2026 18:15:00 +0000
Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-10-27T17:55:29.170Z
Updated: 2026-10-30T20:22:55.339Z
Reserved: 2026-06-24T02:00:46.799Z
Link: CVE-2026-57188
Updated: 2026-10-30T20:22:51.959Z
Status : Undergoing Analysis
Published: 2026-10-27T18:17:37.367
Modified: 2026-10-30T21:16:58.700
Link: CVE-2026-57188
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