High severity8.8NVD Advisory· Published Aug 14, 2026· Updated Aug 14, 2026

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Totolink/A8000Rllm-fuzzy
Range: 4.1.2cu.5137_B20200730

Patches

Vulnerability mechanics

References

github.com/panda666-888/vuls/blob/main/totolink/a800r/setRadvdCfg.mdnvd
vuldb.com/cve/CVE-2026-19844nvd
vuldb.com/submit/869443nvd
vuldb.com/vuln/389980nvd
vuldb.com/vuln/389980/ctinvd
www.totolink.netnvd

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