Vulnerabilities CVE-2026-19844

CVE-2026-19844

High

Open

TLP:CLEAR

TOTOLINK A800R ipv6.so cstecgi.cgi setRadvdCfg stack-based overflow

NVD CVE.org

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Description

A vulnerability was found in TOTOLINK A800R 4.1.2cu.5137_B20200730. The impacted element is the function setRadvdCfg of the file /cgi-bin/cstecgi.cgi of the component ipv6.so. Performing a manipulation of the argument radvdinterfacename results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used.

Details

CVSS Score: 8.7
EPSS Score ⓘ: 0.49%

40.1th percentile
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Confidence: 90%
Published: Aug 14, 2026
Last Modified: Aug 18, 2026

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