Is there a public exploit for CVE-2026-121615?

No public exploit for CVE-2026-121615 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-121615?

CVE-2026-121615 scores CVSS 10 (v4.0), rated critical.

What does CVE-2026-121615 affect?

CVE-2026-121615 affects Linksys E5600.

10.0 Critical

A vulnerability was determined in Linksys E5600 1.1.0.26.

CVE-2026-121615

A vulnerability was determined in Linksys E5600 1.1.0.26. Affected is an unknown function of the file /cgi-bin/meshlogin.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.

Assessment

CVSS: 10 (v4.0)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 4 November 2026
Last updated: 4 November 2026
Affected: Linksys · E5600
Assigner: VulDB

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P

At the source

EUVD (ENISA)

References

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