CVE-2026-25603: Path Traversal vulnerability in Linksys MR9600, Linksys MX4200

Vulnerability summary

CVE-2026-25603 is a medium (CVSS 6.6) Path Traversal vulnerability in linksys mr9600_firmware. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 26.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 24-02-2026
   PublishedVulnerability first disclosed.
2. 24-02-2026
   Last modifiedVulnerability information updated.

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Linksys MR9600, Linksys MX4200 allows that contents of a USB drive partition can be mounted in an arbitrary location of the file system. This may result in the execution of shell scripts in the context of a root user.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.