What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-19 · updated 2026-06-17
• Weakness: CWE-310

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

• Linksys E5600: 1.1.0.26

References

• https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Linksys/E5600.md
• https://vuldb.com/?ctiid.320525
• https://vuldb.com/?id.320525
• https://vuldb.com/?submit.628642
• https://www.linksys.com/
• https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Linksys/E5600.md

Get alerted when CVE-2025-9146 or the next vulnerability affects your stack