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Vulnerability record · CVE-2026-25603 · published 24 February 2026

CVE-2026-25603: Linksys mr9600 firmware path traversal vulnerability

Linksys · Mr9600 Firmware

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.

6.6 CVSS 3.1 Medium EPSS 0.30% · top 80.0% CWE-22 · Path traversal
6.6CVSS 3.1 base score
0.30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
1References, 1 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2025-001.txt ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-25603), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.