CVE-2026-0794 ALGO 8180 IP Audio Alerter SIP Use-After-Free Remote Code Execution Vulnerability

High 8.1 Published 23 Jan 2026 Updated 23 Jan 2026

Remote attackers can execute arbitrary code on ALGO 8180 IP Audio Alerter devices via a use-after-free flaw in SIP handling without authentication.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-0794?

CVE-2026-0794 is a high-severity use after free vulnerability in ALGO 8180 IP Audio Alerter, published on 23 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ALGO 8180 IP Audio Alerter SIP Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of SIP calls. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-28303.

Weakness: CWE-416

Which versions are affected by CVE-2026-0794?

It affects 1 product.

Products include Algosolutions 8180 Ip Audio Alerter Firmware.

How do I fix CVE-2026-0794?

No fix has been published for CVE-2026-0794 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2026-0794 being exploited?

There is no known exploitation of CVE-2026-0794 in the wild and no public exploit code.

Sources

Also known as GHSA-79wr-8p99-xvr6.