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Public proof of concept

CVE-2026-2686

A public proof of concept exists; no exploitation attested.

  • Published2026-02-19
  • WeaknessCWE-77 · CWE-78

Am I affected?

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Description

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.

Timeline

dates in UTC
  1. 2026-02-1900:16CVE publishedNVD

Versions per branch

Products declared by the CNA

As VulDB, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • SECCN Dingcheng G10
    Affected
    • = 3.1.0.181203no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-02-23

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-2686 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVE recordread 2026-10-23
  • CISA-ADPSSVC decisionpoc2026-02-24
  • CNACVSS 4.08.9known since 2026-10-23
  • CNACVSS 3.19.8known since 2026-10-23
  • CNACVSS 2.010known since 2026-10-23
  • CNAweakness (CWE)CWE-77, CWE-78known since 2026-10-23
  • FIRST EPSSEPSS score2.6 %2026-11-08
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-02-19
Last Modified
2026-06-17
NVD status
Deferred
GitHub Advisory
GHSA-87c2-mcff-93mr

Frequently asked questions

What is CVE-2026-2686?

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.

Is CVE-2026-2686 actively exploited?

A proof-of-concept exploit exists for CVE-2026-2686, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-2686?

CVE-2026-2686 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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