Vulnerability 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 Score
HIGH
Related Weaknesses (CWE)
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/
FAQ
What is CVE-2026-19844?
CVE-2026-19844 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 manipulatio...
How severe is CVE-2026-19844?
CVE-2026-19844 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-19844?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.