CVE-2025-56266 — CRITICAL (9.8)

Vulnerability Description

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

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
Avigilon	Access Control Manager	7.10.0.20

Related Weaknesses (CWE)

CWE-74 CWE-116 CWE-444

References

https://github.com/nikolas-ch/CVEs/blob/main/AvigilonACM_v7.10.0.20/HostHeaderInExploitThird Party Advisory
https://github.com/nikolas-ch/CVEs/tree/main/AvigilonACM_v7.10.0.20/Exploit
https://github.com/nikolas-ch/CVEs/tree/main/AvigilonACM_v7.10.0.20/HostHeaderInExploit

FAQ

What is CVE-2025-56266?

CVE-2025-56266 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A Host Header Injection vulnerability in Avigilon ACM v7.10.0.20 allows attackers to execute arbitrary code via supplying a crafted URL.

How severe is CVE-2025-56266?

CVE-2025-56266 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-2025-56266?

Check the references section above for vendor advisories and patch information. Affected products include: Avigilon Access Control Manager.