CVE-2026-121615
A vulnerability was determined in Linksys E5600 1.1.0.26
- Risk score
- 65/100
- CVSS
- 10.0 v3.1
- Published
- 4 Nov 2026
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What to know
- What it is
- A critical vulnerability in Linksys E5600 1.1.0.26 allows remote attackers to perform improper authentication. This could be exploited to gain high privileges.
- Affected
- {'products': ['Linksys E5600'], 'packages': [], 'versions': ['1.1.0.26']}
- Fix
- Check the linked advisory for a fix, as the vendor did not respond to the disclosure.
- Exploitation
- Public proof of concept
Why it is Amber
- CVSS 10.0 critical
- Remotely exploitable without logging in
References
Original description
A vulnerability was determined in Linksys E5600 1.1.0.26. Affected is an unknown function of the file /cgi-bin/mesh_login.cgi of the component Login Handler. Executing a manipulation can lead to improper authentication. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way. This vulnerability only affects products that are no longer supported by the maintainer.
Last activity 4 Nov 2026. Patch Forecast updates every hour.