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CVE-2026-57188 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/asterisk/asterisk/commit/12072a559f592736a44dd9fbe1594e84714edfb4	[email protected]
https://github.com/asterisk/asterisk/commit/1328dbb503da4aa11a480a9c28e170f17e5f4e84	[email protected]
https://github.com/asterisk/asterisk/commit/3c4b08cf94eeaa3faefb3ae6c2d6ce1bd9747a13	[email protected]
https://github.com/asterisk/asterisk/commit/433102c16b8edfc31d28c96166fef03fe72fb923	[email protected]
https://github.com/asterisk/asterisk/commit/5e626250628b2579530f3f17e7b0aa37d082873b	[email protected]
https://github.com/asterisk/asterisk/commit/d570a85e45153a36919ace5d0ab06a195b30f9d1	[email protected]
https://github.com/asterisk/asterisk/commit/e329a6803ac5214028f98cc5f0b7167d66e32c08	[email protected]
https://github.com/asterisk/asterisk/releases/tag/20.20.1	[email protected]
https://github.com/asterisk/asterisk/releases/tag/21.12.3	[email protected]
https://github.com/asterisk/asterisk/releases/tag/22.10.1	[email protected]
https://github.com/asterisk/asterisk/releases/tag/23.4.1	[email protected]
https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11	[email protected]
https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3	[email protected]
https://github.com/asterisk/asterisk/security/advisories/GHSA-mxgm-8c6f-5p8f	[email protected]
https://github.com/asterisk/asterisk/tree/24.0.0-pre1	[email protected]

see all 15 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 30, 2026	CVE Modified	CISA-ADP
Oct 27, 2026	New CVE Received	[email protected]