CVE-2026-6168

HIGH

TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow

Title source: cna

Description

A flaw has been found in TOTOLINK A7000R up to 9.1.0u.6115. The affected element is the function setWiFiEasyGuestCfg of the file /cgi-bin/cstecgi.cgi. This manipulation of the argument ssid5g causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.

References (5)

Core 5

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-357056 | TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow

https://vuldb.com/vuln/357056

Signature, Permissions Required signature permissions-required

VDB-357056 | CTI Indicators (IOB, IOC, IOA)

https://vuldb.com/vuln/357056/cti

Third Party Advisory third-party-advisory

Submit #797193 | TOTOLINK A7000R <=V9.1.0u.6115 Stack-based Buffer Overflow

https://vuldb.com/submit/797193

Exploit exploit

https://github.com/zhuchan770/vulnerability/blob/main/A7000R/setWiFiEasyGuestCfg/ToToLink%20A7000R%20setWiFiEasyGuestCfg%20338996b67c9780b89829d0ea70058788.md

View Exploit ZIP pw:eip

Product product

https://www.totolink.net/

Scores

CVSS v3 8.8

EPSS 0.0057

EPSS Percentile 42.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-119 CWE-121

Status published

Products (1)

TOTOLINK/A7000R 9.1.0u.6115

Published Apr 13, 2026

Tracked Since Apr 13, 2026