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CVE-2026-57195 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, 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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/asterisk/asterisk/commit/10c5b2efcacab03bf04a229f81cc24e76fe42c41	[email protected]
https://github.com/asterisk/asterisk/commit/362ef847e7e057b7626e476ddcfe7328ea314db4	[email protected]
https://github.com/asterisk/asterisk/commit/5d5d8d8ef7f16774820b1889ae73d8d2ab14af45	[email protected]
https://github.com/asterisk/asterisk/commit/87a1f43e4c465b885163665aa89172ed0f392663	[email protected]
https://github.com/asterisk/asterisk/commit/a1fcfdf9b91ed58cc8fb9da8d135da60bae7345d	[email protected]
https://github.com/asterisk/asterisk/commit/abba42c58fee2226a709583afdbeec75cf1dde8b	[email protected]
https://github.com/asterisk/asterisk/commit/fff89162cdd702e8a143701f138edd8dceab154f	[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-3rhj-hhw7-m6fw	[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-476	NULL Pointer Dereference	[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
Nov 2, 2026	CVE Modified	CISA-ADP
Oct 27, 2026	New CVE Received	[email protected]