CVE-2026-25603: Linksys MR9600 · Path Traversal
Affects Linksys MR9600Source CVE Database V5
Not known to be exploited · CVSS 6.6 Medium.
Data as of 26 Oct 2026, 17:16 UTC
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 24 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinksysMR9600 | Affected
| Fixed in– |
| LinksysMX4200 | Affected
| Fixed in– |
AI-suggested
- Monitor Linksys official channels for firmware updates addressing this vulnerability and apply patches immediately upon release.
- Until patches are available, disable or restrict USB port usage on affected routers to prevent mounting of unauthorized USB devices.
- Implement network segmentation to limit access to router management interfaces to trusted administrators only.
- Employ strict access control and monitoring on network segments where these routers operate to detect unusual mounting or execution activities.
- Educate users and administrators about the risks of connecting unknown USB devices to network infrastructure equipment.
- Use network intrusion detection systems (NIDS) to identify suspicious activities related to USB mounting or shell script execution.
- Regularly audit router configurations and logs for signs of exploitation attempts.
- 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.