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Vulnerability · Published Aug 19, 2025 · Assigned by VulDB

CVE-2025-9146Linksys E5600 Firmware checkFw.sh verify_gemtek_header risky encryption

Medium 6.6

In plain English

A medium-severity broken cryptography in E5600 from Linksys. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 46% of all known vulnerabilities).

Severity (CVSS 3.1)6.6Medium
Exploit odds (30 days)0.6%top 53.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A flaw has been found in Linksys E5600 1.1.0.26. The affected element is the function verify_gemtek_header of the file checkFw.sh of the component Firmware Handler. Executing manipulation can lead to risky cryptographic algorithm. The attack may be launched remotely. The attack requires a high level of complexity. The exploitability is described as difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

VendorProductVersions
Linksys E5600 1.1.0.26

Weakness: CWE-327, CWE-310 · Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R

References