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SECCN Dingcheng G10 CVE-2026-2686

CRITICAL
Command Injection (CWE-77)
2026-02-19 cna@vuldb.com
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:03 vuln.today
PoC Detected
Feb 19, 2026 - 15:53 vuln.today
Public exploit code
CVE Published
Feb 19, 2026 - 00:16 nvd
CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

Command injection in SECCN Dingcheng G10 3.1.0.181203 router via session_login.cgi. PoC available.

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Send crafted HTTP request to /cgi-bin/session_login.cgi
Exploit
Inject OS commands in User parameter
Impact
Execute arbitrary commands as root

Vulnerability AssessmentAI

Exploitation No special conditions — remote unauthenticated exploitation against default configurations of SECCN Dingcheng G10 version 3.1.0.181203 with accessible /cgi-bin/session_login.cgi endpoint. Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 9.8, EPSS 0.22%. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Inject commands through login CGI.
Remediation Update firmware. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: Identify and inventory all SECCN Dingcheng G10 3.1.0.181203 devices in your environment and restrict network access to the /cgi-bin/session_login.cgi endpoint. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-2686 vulnerability details – vuln.today

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