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VulnerabilityPublished

CVE-2026-25603: Linksys MR9600 · Path Traversal

Affects Linksys MR9600Source CVE Database V5

0

Not known to be exploited · CVSS 6.6 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
6.6Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 24 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
LinksysMR9600Affected
  • =1.0.4.205530
Fixed in–
LinksysMX4200Affected
  • =1.0.13.210200
Fixed in–

AI-suggested

  1. Monitor Linksys official channels for firmware updates addressing this vulnerability and apply patches immediately upon release.
  2. Until patches are available, disable or restrict USB port usage on affected routers to prevent mounting of unauthorized USB devices.
  3. Implement network segmentation to limit access to router management interfaces to trusted administrators only.
  4. Employ strict access control and monitoring on network segments where these routers operate to detect unusual mounting or execution activities.
  5. Educate users and administrators about the risks of connecting unknown USB devices to network infrastructure equipment.
  6. Use network intrusion detection systems (NIDS) to identify suspicious activities related to USB mounting or shell script execution.
  7. Regularly audit router configurations and logs for signs of exploitation attempts.
  8. Consider deploying alternative hardware or firmware solutions with stronger security postures if immediate patching is not feasible.

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.

References

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