CVE-2026-2686 CRITICAL

CVE-2026-2686: SECCN Dingcheng G10 session_login.cgi qq os command injection

Vendor Seccn Dingcheng
Product G10
Weakness CWE-78
Published February 19, 2026
Last update February 24, 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 security vulnerability has been detected in SECCN Dingcheng G10 3.1.0.181203. This impacts the function qq of the file /cgi-bin/session_login.cgi. The manipulation of the argument User leads to os command injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.

Key dates

02Disclosure timeline

February 19, 2026 CVE published
February 24, 2026 Record updated