Buffer overflow in Algo 8180 Ip Audio Alerter
CVE-2026-0791
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.
Vulnerability class: Buffer Overflow
EPSS: 0.008 (53.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Algo 8180 Ip Audio Alerter — versions 5.5
- Algosolutions 8180_ip_audio_alerter
- Algosolutions 8180_ip_audio_alerter_firmware — versions 5.5
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-0791?
- CVE-2026-0791 is a critical-severity vulnerability in Algo 8180 Ip Audio Alerter, classified under Stack-based Buffer Overflow. CVSS score: 9.8/10. Published 2026-01-23.
- How severe is CVE-2026-0791?
- Critical severity. CVSS v3 base score is 9.8 out of 10.