CVE-2026-19813: TOTOLINK A800R firewall.so cstecgi.cgi setMacFilterRules stack-based overflow
A security vulnerability has been detected in TOTOLINK A800R 4.1.2cu.5137B20200730. This impacts the function setMacFilterRules of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Such manipulation of the argument Comment leads to stack-based buffer overflow. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-19813?
CVE-2026-19813 has a high severity rating of 8.8.
How do I fix CVE-2026-19813?
To fix CVE-2026-19813, update the TOTOLINK A800R device to the latest firmware version provided by the vendor.
What type of vulnerability is CVE-2026-19813?
CVE-2026-19813 is a stack-based buffer overflow vulnerability.
What impact does CVE-2026-19813 have on system security?
CVE-2026-19813 can lead to unauthorized access and potential control over the affected system due to a buffer overflow.
Which component is affected by CVE-2026-19813?
CVE-2026-19813 affects the function setMacFilterRules in the firewall.so component of the TOTOLINK A800R.