CVE-2026-0793 is a heap-based buffer overflow vulnerability identified in the ALGO 8180 IP Audio Alerter, specifically within its InformaCast functionality. The vulnerability stems from inadequate validation of the length of user-supplied data before it is copied into a heap buffer, leading to a buffer overflow condition. This flaw allows remote attackers to execute arbitrary code on affected devices without requiring any form of authentication or user interaction, making it highly exploitable. The vulnerability has been assigned a CVSS 3.0 base score of 8.1, indicating high severity, with attack vector as network (AV:N), high attack complexity (AC:H), no privileges required (PR:N), no user interaction (UI:N), and impacts on confidentiality, integrity, and availability all rated high (C:H/I:H/A:H). The exploitation could allow attackers to take full control of the device, potentially disrupting alerting services or using the device as a foothold for further network compromise. The affected product version is 5.5, and no patches have been publicly released at the time of this report. Although no known exploits are currently active in the wild, the vulnerability's characteristics make it a significant risk. The device is typically used in enterprise and critical infrastructure environments for IP audio alerting, making the impact of compromise potentially severe. The vulnerability was reported by ZDI (ZDI-CAN-28302) and publicly disclosed on January 23, 2026.

For European organizations, the exploitation of CVE-2026-0793 could have severe consequences. The ALGO 8180 IP Audio Alerter is often deployed in environments requiring reliable audio alerting such as corporate campuses, transportation hubs, healthcare facilities, and industrial sites. A successful attack could lead to unauthorized code execution, enabling attackers to disrupt alerting systems, cause denial of service, or pivot into internal networks for further compromise. This could impact operational continuity, safety communications, and incident response capabilities. Confidentiality breaches could expose sensitive information transmitted or stored on the device. Integrity loss could allow attackers to manipulate alert messages, causing misinformation or failure to alert during emergencies. Availability impacts could result in the loss of critical audio alerting services. Given the device’s role in safety and operational communications, the threat is particularly concerning for sectors such as transportation, healthcare, energy, and government facilities across Europe.

1. Monitor ALGO’s official channels for security advisories and promptly apply any patches or firmware updates addressing CVE-2026-0793 once released. 2. Until patches are available, restrict network access to the ALGO 8180 IP Audio Alerter devices by implementing strict firewall rules and network segmentation to limit exposure to untrusted networks. 3. Employ intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics capable of detecting anomalous traffic patterns targeting the InformaCast functionality. 4. Conduct regular security assessments and vulnerability scans on devices to detect unauthorized changes or signs of compromise. 5. Disable or restrict InformaCast functionality if it is not required for operational purposes to reduce the attack surface. 6. Implement strong network access controls, including VPNs or zero-trust network access, for remote management interfaces. 7. Maintain comprehensive logging and monitoring of device activity to enable rapid detection and response to suspicious behavior. 8. Educate relevant personnel on the risks associated with this vulnerability and the importance of timely patching and network hygiene.