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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.

PUBLISHED Reserved 2026-04-12 | Published 2026-04-13 | Updated 2026-04-16 | Assigner VulDB




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
HIGH: 8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Stack-based Buffer Overflow

Memory Corruption

Product status

9.1.0u.6115
affected

Timeline

2026-04-12:Advisory disclosed
2026-04-12:VulDB entry created
2026-04-12:VulDB entry last update

Credits

DLChen (VulDB User) reporter

References

vuldb.com/vuln/357056 (VDB-357056 | TOTOLINK A7000R cstecgi.cgi setWiFiEasyGuestCfg stack-based overflow) vdb-entry technical-description

vuldb.com/vuln/357056/cti (VDB-357056 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/797193 (Submit #797193 | TOTOLINK A7000R <=V9.1.0u.6115 Stack-based Buffer Overflow) third-party-advisory

github.com/...syGuestCfg 338996b67c9780b89829d0ea70058788.md exploit

www.totolink.net/ product

cve.org (CVE-2026-6168)

nvd.nist.gov (CVE-2026-6168)

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