CVE-2025-9146
Linksys E5600 Firmware checkFw.sh verify_gemtek_header risky encryption
- State
- Published
- Severity
- 7.5 High
- Published
- Aug 19, 2025
- Updated
- Aug 19, 2025
- Reserved
- Aug 19, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.5 High | CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X | VulDB |
| 3.1 | 6.6 Medium | 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 | VulDB |
| 3.0 | 6.6 Medium | CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R | VulDB |
| 2.0 | 6.8 Medium | AV:N/AC:H/Au:M/C:C/I:C/A:C/E:ND/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
E5600Linksys |
|
References
- VDB-320525 | Linksys E5600 Firmware checkFw.sh verify_gemtek_header risky encryptionvdb-entrytechnical-description
- VDB-320525 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #628642 | Linksys E5600 1.1.0.26 CWE-327 Use of a Broken or Risky Cryptographic Algorithmthird-party-advisory
- https://github.com/IOTRes/IOT_Firmware_Update/blob/main/Linksys/E5600.mdpatch
- https://www.linksys.com/product
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