CVE-2026-0791

critical · 9.8

ALGO 8180 IP Audio Alerter SIP INVITE Replaces Stack-based Buffer Overflow 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 the Replaces header of SIP INVITE requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-28300.

9.8

CVSS

0.8%

EPSS (exploit prob.)

56th

EPSS percentile

2026-01-23

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-121CWE-787

Affected products

Vendor	Product	Affected versions
algosolutions	8180_ip_audio_alerter_firmware	5.5
algosolutions	8180_ip_audio_alerter	all versions

Check a specific version with /api/v1/cve/match.

References

https://www.zerodayinitiative.com/advisories/ZDI-26-013/

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-0791