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High severity · published Apr 13, 2026
CVE-2026-6168
TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow
8.8
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 47% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A7
A7000R · TOTOLINK
9.1.0u.6115 · source: vendor
Affected product
A7
A7000R
TOTOLINK
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-6168
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-6168
github.com
https://github.com/zhuchan770/vulnerability/blob/main/A7000R/setWiFiEasyGuestCfg/ToToLink%20A7000R%20setWiFiEasyGuestCfg%20338996b67c9780b89829d0ea70058788.md
vuldb.com
https://vuldb.com/submit/797193
vuldb.com
https://vuldb.com/vuln/357056
vuldb.com
https://vuldb.com/vuln/357056/cti
www.totolink.net
https://www.totolink.net/
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