CVE-2025-56266: Avigilon Access Control Manager

Critical severity, CVSS 9.8. EPSS: 2.9% chance of exploitation in the next 30 days.

A Host Header Injection vulnerability in Avigilon ACM v7.10.0.20 allows attackers to execute arbitrary code via supplying a crafted URL.

Affected products

Published 2025-09-08. Last modified 2026-06-17.