CVE-2025-2764 CarlinKit CPC200-CCPA update.cgi Improper Verification of Cryptographic Signature Code Execution Vulnerability

High 8.0 Published 23 Apr 2025 Updated 23 Apr 2025

Network-adjacent attackers can bypass authentication and execute arbitrary code as root due to improper cryptographic signature verification in update.cgi.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-2764?

CVE-2025-2764 is a high-severity vulnerability in CarlinKit CPC200-CCPA, published on 23 Apr 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

CarlinKit CPC200-CCPA update.cgi Improper Verification of Cryptographic Signature Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of CarlinKit CPC200-CCPA devices. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the handling of update packages provided to update.cgi. The issue results from the lack of proper verification of a cryptographic signature. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-24355.

Weakness: CWE-347

Which versions are affected by CVE-2025-2764?

It affects 1 product.

Products include Carlinkit Autokit.

How do I fix CVE-2025-2764?

No fix has been published for CVE-2025-2764 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-2764 being exploited?

There is no known exploitation of CVE-2025-2764 in the wild and no public exploit code.

Sources

Also known as GHSA-mxxr-2fvg-xw43.