CVE-2026-19814

EUVD-2026-58612
A vulnerability was detected in TOTOLINK A800R 4.1.2cu.5137_B20200730. Affected is the function setMacQos of the file /cgi-bin/cstecgi.cgi of the component firewall.so. Performing a manipulation of the argument macAddress results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 38.32%
Common Weakness Enumeration
References
https://github.com/panda666-888/vuls/blob/main/totolink/a800r/setMacQos.md
https://vuldb.com/cve/CVE-2026-19814
https://vuldb.com/submit/869431
https://vuldb.com/vuln/389950
https://vuldb.com/vuln/389950/cti
https://www.totolink.net/