#VU122442 Insecure library loading in Asterisk Open Source and Certified Asterisk - CVE-2026-23740

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Main Vulnerability Database Vulnerabilities #VU122442

#VU122442 Insecure library loading in Asterisk Open Source and Certified Asterisk - CVE-2026-23740

Published: February 6, 2026


Vulnerability identifier: #VU122442
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-23740
CWE-ID: CWE-427
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Asterisk Open Source
Certified Asterisk
Software vendor:
Digium (Linux Support Services)

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the application loads dynamic libraries in an insecure manner from the /tmp directory. A local user can place a specially crafted library file into the /tmp directory and execute arbitrary code on the system with root privileges. 


Remediation

Install updates from vendor's website.

External links