CVE-2026-5850 CRITICAL

CVE-2026-5850: Totolink A7100RU CGI cstecgi.cgi setVpnPassCfg os command injection

Vendor Totolink
Product A7100RU
Weakness CWE-78
Published April 9, 2026
Last update April 13, 2026
View on NVD All CVEs

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A vulnerability was identified in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function setVpnPassCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument pptpPassThru leads to os command injection. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.

Key dates

02Disclosure timeline

April 9, 2026 CVE published
April 13, 2026 Record updated