CVE-2025-7976 Anritsu ShockLine CHX File Parsing Deserialization of Untrusted Data Remote Code Execution Vulnerability

High 7.8 Published 2 Sep 2025 Updated 2 Sep 2025

Remote attackers can execute arbitrary code by tricking users into opening malicious CHX files in Anritsu ShockLine software.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2025-7976?

CVE-2025-7976 is a high-severity unsafe deserialization vulnerability in Anritsu ShockLine, published on 2 Sep 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Anritsu ShockLine CHX File Parsing Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Anritsu ShockLine. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of CHX files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26882.

Weakness: CWE-502

Which versions are affected by CVE-2025-7976?

It affects 1 product.

Products include Anritsu Shockline.

How do I fix CVE-2025-7976?

No fix has been published for CVE-2025-7976 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2025-7976 being exploited?

There is no known exploitation of CVE-2025-7976 in the wild and no public exploit code.

Sources

Also known as GHSA-g8wp-p3c3-8g28.