A security vulnerability has been detected in TOTOLINK N600R 4.3.0cu.7647_B20210106. The affected element is the function setSystemConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument Hostname leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
History

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 26 Aug 2026 02:45:00 +0000

Type Values Removed Values Added
First Time appeared Totolink n600r
Vendors & Products Totolink n600r

Tue, 25 Aug 2026 22:30:00 +0000

Type Values Removed Values Added
Description A security vulnerability has been detected in TOTOLINK N600R 4.3.0cu.7647_B20210106. The affected element is the function setSystemConfig of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument Hostname leads to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
Title TOTOLINK N600R CGI cstecgi.cgi setSystemConfig stack-based overflow
First Time appeared Totolink
Totolink n600r Firmware
Weaknesses CWE-119
CWE-121
CPEs cpe:2.3:o:totolink:n600r_firmware:*:*:*:*:*:*:*:*
Vendors & Products Totolink
Totolink n600r Firmware
References
Metrics cvssV2_0

{'score': 10, 'vector': 'AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 10, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 10, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-08-25T22:15:13.200Z

Updated: 2026-08-27T14:34:41.311Z

Reserved: 2026-08-25T14:57:17.413Z

Link: CVE-2026-79911

cve-icon Vulnrichment

Updated: 2026-08-27T13:32:00.280Z

cve-icon NVD

Status : Deferred

Published: 2026-08-25T23:17:59.490

Modified: 2026-08-27T17:20:49.160

Link: CVE-2026-79911

cve-icon Redhat

No data.