CVE-2026-19844

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.

CVSS Vector

References

• https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setRadvdCfg.md
• https://vuldb.com/cve/CVE-2026-19844
• https://vuldb.com/submit/869443
• https://vuldb.com/vuln/389980
• https://vuldb.com/vuln/389980/cti
• https://www.totolink.net/