High 8.8Published Apr 13, 2026

CVE-2026-6168TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow

Updated under an hour ago (Oct 27, 2026, 7:30 PM ET)

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It affects TOTOLINK A7000R. Add what you run to find out whether that includes you.

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Every CVE for TOTOLINK A7000R

Exploited in the last 30 days

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: 8.8 HIGH (v3.1, CNA)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
Weakness (CWE): CWE-121, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: Apr 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

TOTOLINK A7000R totolink:a7000r_firmware	9.1.0u.6115	CNA record

References

References

https://vuldb.com/vuln/357056	vdb-entry, technical-description
https://vuldb.com/vuln/357056/cti	signature, permissions-required
https://vuldb.com/submit/797193	third-party-advisory
https://github.com/zhuchan770/vulnerability/blob/main/A7000R/setWiFiEasyGuestCfg/ToToLink%20A7000R%20setWiFiEasyGuestCfg%20338996b67c9780b89829d0ea70058788.md	exploit
https://www.totolink.net/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.