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CVE-2026-25603

20
FAUCET Score

CVE-2026-25603 is a Path Traversal vulnerability affecting Linksys MR9600 (firmware 1.0.4.205530) and MX4200 (firmware 1.0.13.210200) routers. This flaw allows an attacker to mount a USB drive partition to an arbitrary location on the file system, potentially leading to the execution of shell scripts with root privileges. Rated Medium severity with a CVSS score of 6.6, the attack requires physical access and user interaction. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.4.205530CPE matchmatch criteria
cpe:2.3:o:linksys:mr9600_firmware:1.0.4.205530:*:*:*:*:*:*:*
1.0.4.205530CPE matchmatch criteria
cpe:2.3:o:linksys:mx4200_firmware:1.0.4.205530:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.6MEDIUM

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

Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
0.7
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.26%
Probability of exploitation in next 30 days
EPSS Percentile
17.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0026 is in the 62nd percentile among its peer group of 72 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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