CVE-2026-19812CWE-119CWE-121

CVE-2026-19812

High · published August 14, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
57.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00854 · 57.9th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-121 · Stack-based Buffer Overflow
Published
2026-08-14T12:17Z
References (6)
https://github.com/panda666-888/vuls/blob/main/totolink/a800r/UploadCustomModule.md · [email protected]https://vuldb.com/cve/CVE-2026-19812 · [email protected]https://vuldb.com/submit/869428 · [email protected]https://vuldb.com/vuln/389948 · [email protected]https://vuldb.com/vuln/389948/cti · [email protected]https://www.totolink.net/ · [email protected]
EPSS history
Timeline
  • 14 AUG 07:30Z
    TOTOLINK A800R product.so cstecgi.cgi UploadCustomModule stack-based overflow
    cvelistv5