CVE-2026-0791 — CRITICAL (9.8)

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Algosolutions	8180 Ip Audio Alerter Firmware	5.5
Algosolutions	8180 Ip Audio Alerter	-

Related Weaknesses (CWE)

CWE-121 CWE-787

References

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

FAQ

What is CVE-2026-0791?

CVE-2026-0791 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 install...

How severe is CVE-2026-0791?

CVE-2026-0791 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-0791?

Check the references section above for vendor advisories and patch information. Affected products include: Algosolutions 8180 Ip Audio Alerter Firmware, Algosolutions 8180 Ip Audio Alerter.