Vulnerabilities CVE-2026-19812

CVE-2026-19812

High

Open

TLP:CLEAR

TOTOLINK A800R product.so cstecgi.cgi UploadCustomModule stack-based overflow

NVD CVE.org

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Description

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.

Details

CVSS Score: 8.7
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Confidence: 90%
Published: Aug 14, 2026
Last Modified: Aug 14, 2026

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