CVE-2026-6168

HIGH 8.8

TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow

CVSS Score

8.8

EPSS Score

0.1%

EPSS Percentile

23th

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.

CWE	CWE-121 CWE-119
Vendor	totolink
Product	a7000r
Published	Apr 13, 2026
Last Updated	Apr 16, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

TOTOLINK / A7000R

9.1.0u.6115

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/357056 vuldb.com: https://vuldb.com/vuln/357056/cti vuldb.com: https://vuldb.com/submit/797193 github.com: https://github.com/zhuchan770/vulnerability/blob/main/A7000R/setWiFiEasyGuestCfg/ToToLink%20A7000R%20setWiFiEasyGuestCfg%20338996b67c9780b89829d0ea70058788.md totolink.net: https://www.totolink.net/

Credits

🔍 DLChen (VulDB User)