Arbitrary Code Execution Vulnerability in Asterisk Telephony Toolkit
CVE-2026-23741

NONE

Key Information:

Vendor

Asterisk

Status
Asterisk
Vendor
CVE Published:
6 February 2026

What is CVE-2026-23741?

Asterisk, a prominent open-source telephony toolkit, contains a vulnerability in the ast_coredumper script that runs as a root user, allowing attackers with write access to /etc/asterisk/ast_debug_tools.conf to execute arbitrary bash code. This occurs due to the script's design, which sources configurations from this file that can be maliciously altered. Mitigations are provided in the recent patches, requiring users to upgrade to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, or 23.2.2 to protect against potential exploitation.

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Affected Version(s)

asterisk < 23.2.2 < 23.2.2

asterisk < 22.8.2 < 22.8.2

asterisk < 21.12.1 < 21.12.1

References

https://github.com/asterisk/asterisk/security/advisories/...
x_refsource_CONFIRM

CVSS V3.1

Score:
Severity:
NONE
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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