CVE-2026-0791

CRITICAL
2026-01-23 [email protected]
9.8
CVSS 3.1
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CVSS Vector

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

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 23, 2026 - 04:16 nvd
CRITICAL 9.8

Tags

Golang RCE Buffer Overflow Stack Overflow 8180 Ip Audio Alerter Firmware

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.

Analysis

ALGO 8180 has a stack-based buffer overflow in SIP INVITE Replaces header processing enabling remote code execution through crafted VoIP calls.

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Remediation

Within 24 hours: Inventory all ALGO 8180 devices and isolate them to a dedicated VLAN with restricted SIP access. Within 7 days: Implement network-based mitigations (WAF/IPS rules blocking malformed SIP Replaces headers, disable SIP INVITE processing if operationally feasible). …

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Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +0.5
CVSS: +49
POC: 0

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CVE-2026-0791 vulnerability details – vuln.today
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