CVE-2026-114382criticalCWE-119CWE-121

CVE-2026-114382: critical vulnerability in TOTOLINK EX200

TOTOLINK EX200 lan.so cstecgi.cgi setStaticDhcpConfig stack-based overflow

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48Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 10epss 0.7%
A security flaw has been discovered in TOTOLINK EX200 5.2.3c.7200. This affects the function setStaticDhcpConfig of the file /cgi-bin/cstecgi.cgi of the component lan.so. The manipulation of the argument Comment results in stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
CVSS: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
Affected products
TOTOLINK · EX200
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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