CVE-2026-15701criticalCWE-119CWE-121

CVE-2026-15701: critical vulnerability in Totolink NR1800X

Totolink NR1800X lighttpd formLogout.htm Form_Logout stack-based overflow

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48Vexday Risk Score

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

ssvc Attendcvss 9.3epss 1.1%
A weakness has been identified in Totolink NR1800X 9.1.0u.6279_B20210910. Affected by this issue is the function Form_Logout of the file /formLogout.htm of the component lighttpd. This manipulation of the argument Host causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
Totolink · NR1800X
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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