Advisory Details

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.

10/24/25 – ZDI requested the vendor’s PSIRT contacts via email
10/28/25 – the vendor asked for the affected version number
10/28/25 – ZDI provided the affected product version
10/30/25 – ZDI asked for updates
10/31/25 – the vendor provided their contacts
10/31/25 – ZDI submitted the report to the vendor
12/10/25 – ZDI asked for updates
12/17/25 - ZDI notified the vendor of the intention to publish the case as a  0-day advisory

-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the product

• 2025-10-31 - Vulnerability reported to vendor
• 2026-01-09 - Coordinated public release of advisory
• 2026-01-09 - Advisory Updated