CVE-2026-121598Critical· 9.9▾ AbyssalPoC availableA security vulnerability has been detected in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This impacts the function strcpy of the file /cgi-bin/cstecgi.cgi of the component Basic Wireless Configuration Handler. The manipulation of the argume…
▾ Abyssal zone — Critical with a public exploit or in-the-wild use
impact 54.5 · likelihood 0.1 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.5%
A security vulnerability has been detected in TOTOLINK A950RG 4.1.2cu.5268_B20221104. This impacts the function strcpy of the file /cgi-bin/cstecgi.cgi of the component Basic Wireless Configuration Handler. The manipulation of the argument wepkey leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used.
A950RG 4.1.2cu.5268_B20221104Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-116508Critical· 10.0TOTOLINK A950RG Device-Information CGI infostat.cgi sub_402340 stack-based overflow
CVE-2026-121600Critical· 9.9TOTOLINK A950RG MAC Filter cstecgi.cgi setMacFilterRules stack-based overflow
CVE-2026-121599Critical· 9.9TOTOLINK A950RG Multi-SSID Configuration cstecgi.cgi delWiFiMultipleConfig stack-based overflow
CVE-2026-121597Critical· 9.9TOTOLINK A950RG Easy Setup Wizard cstecgi.cgi setAppEasyWizardConfig stack-based overflow
CVE-2026-114382Critical· 10.0TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflow
CVE-2026-114383Critical· 10.0TOTOLINK EX200 wireless.so cstecgi.cgi setWiFiAclAddConfig stack-based overflow