CVE-2026-2686

SECCN Dingcheng G10 session_login.cgi qq os command injection

CVSS 9.3 CRITICALEPSS 2.3%CWE-77 CWE-78

Vexday Risk Score

48Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 9.3EPSS 2.3%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

19 Feb 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

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

Affected products

SECCN Dingcheng · G10

public PoCs found — 1

cve_referencegithub.com/cha0yang1/SECCN/blob/main/UnauthorizedRCE.md#2-vulnerability-reproduction-proof-of-conceptunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://github.com/cha0yang1/SECCN/blob/main/UnauthorizedRCE.md https://github.com/cha0yang1/SECCN/blob/main/UnauthorizedRCE.md#2-vulnerability-reproduction-proof-of-concept https://vuldb.com/?ctiid.346488 https://vuldb.com/?id.346488 https://vuldb.com/?submit.754200