Vulnerability · Published Apr 13, 2026 · Assigned by VulDB
CVE-2026-6168TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in A7000R from TOTOLINK. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 52.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-121, CWE-119 · Vector: 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
References
- VDB-357056 | TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow vdb-entry, technical-description
- VDB-357056 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #797193 | TOTOLINK A7000R <=V9.1.0u.6115 Stack-based Buffer Overflow third-party-advisory
- https://github.com/zhuchan770/vulnerability/blob/main/A7000R/setWiFiEasyGuestCfg/ToToLink%20A7000R%20setWiFiEasyGuestCfg%20338996b67c9780b89829d0ea70058788.md exploit
- https://www.totolink.net/ product