CVE-2026-5850

critical

Description

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.

References

https://www.totolink.net/

https://vuldb.com/vuln/356376/cti

https://vuldb.com/vuln/356376

https://vuldb.com/submit/791266

https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_156/README.md

Details

Source: Mitre, NVD

Published: 2026-04-09

Updated: 2026-04-09

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

CVSS v4

Base Score: 9.3

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

Severity: Critical

EPSS

EPSS: 0.00892