Is there a public exploit for CVE-2026-121599?

No public exploit for CVE-2026-121599 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-2026-121599?

CVE-2026-121599 scores CVSS 9.4 (v4.0), rated critical.

What does CVE-2026-121599 affect?

CVE-2026-121599 affects Totolink A950RG.

9.4 Critical

A vulnerability was detected in TOTOLINK A950RG 4.1.2cu.5268B20221104.

CVE-2026-121599

A vulnerability was detected in TOTOLINK A950RG 4.1.2cu.5268B20221104. Affected is the function setWiFiMultipleConfig/delWiFiMultipleConfig of the file /cgi-bin/cstecgi.cgi of the component Multi-SSID Configuration. The manipulation of the argument wepkey2/wepkey3 results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit is now public and may be used.

Assessment

CVSS: 9.4 (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: Totolink · A950RG
Assigner: VulDB

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:L/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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