CVE-2025-9146

Linksys E5600 Firmware checkFw.sh verify_gemtek_header risky encryption

HIGH
8.1
CVSS Score
Published: August 19, 2025 at 04:02 PM UTC
Updated: June 17, 2026 at 10:08 AM UTC
2 products affected across 1 vendorE5600 FirmwareLinksys E5600

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Severity
HIGH8.1
Exploit prediction
EPSS 0.6%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

linksys-e5600 (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

SignaturePermissions RequiredVDB Entry
https://vuldb.com/?ctiid.320525
VDB EntryTechnical DescriptionThird Party Advisory
https://vuldb.com/?id.320525
Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.628642

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-310CWE-327

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