CVE-2026-19812

EUVD-2026-58606
A weakness has been identified in TOTOLINK A800R 4.1.2cu.5137_B20200730. This affects the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi of the component product.so. This manipulation of the argument File causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks.
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: 40.02%
Common Weakness Enumeration
References
https://github.com/panda666-888/vuls/blob/main/totolink/a800r/UploadCustomModule.md
https://vuldb.com/cve/CVE-2026-19812
https://vuldb.com/submit/869428
https://vuldb.com/vuln/389948
https://vuldb.com/vuln/389948/cti
https://www.totolink.net/