CVE-2025-1131 Asterisk Unsafe Shell Sourcing in safe_asterisk Leads to Local Privilege Escalation

High 7.0 Published 23 Sep 2025 Updated 26 Feb 2026

Local attackers with write access to Asterisk startup directories can execute arbitrary code as root via unsafe shell sourcing in the safe_asterisk script.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: Available

What is CVE-2025-1131?

CVE-2025-1131 is a high-severity vulnerability in Asterisk, published on 23 Sep 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A local privilege escalation vulnerability exists in the safe_asterisk script included with the Asterisk toolkit package. When Asterisk is started via this script (common in SysV init or FreePBX environments), it sources all .sh files located in /etc/asterisk/startup.d/ as root, without validating ownership or permissions.

Non-root users with legitimate write access to /etc/asterisk can exploit this behaviour by placing malicious scripts in the startup.d directory, which will then execute with root privileges upon service restart.

Weakness: CWE-427

Which versions are affected by CVE-2025-1131?

It affects 2 products.

Products include Sangoma Asterisk, Sangoma Certified Asterisk.

How do I fix CVE-2025-1131?

Apply the vendor's patch.

Is CVE-2025-1131 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-1131 exists.

Sources

Also known as DEBIAN-CVE-2025-1131, GHSA-v9q8-9j8m-5xwp, UBUNTU-CVE-2025-1131.