SECCN Dingcheng G10 3.1.0.181203 session_login.cgi qq User os command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in SECCN Dingcheng G10 3.1.0.181203. Affected is the function qq of the file /cgi-bin/session_login.cgi. The manipulation of the argument User results in os command injection. This vulnerability was named CVE-2026-2686. The attack may be performed from remote. In addition, an exploit is available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability was found in SECCN Dingcheng G10 3.1.0.181203. It has been classified as critical. Affected is the function qq of the file /cgi-bin/session_login.cgi. The manipulation of the argument user with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-2686. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1202.

The exploit is shared for download at github.com. It is declared as proof-of-concept.

It is possible to mitigate the weakness by firewalling .

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.8
VulDB Temp Score: 8.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Os command injection
CWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/18/2026 Advisory disclosed
02/18/2026 +0 days VulDB entry created
02/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-2686 (🔒)
GCVE (CVE): GCVE-0-2026-2686
GCVE (VulDB): GCVE-100-346488
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/18/2026 03:18 PM
Changes: 02/18/2026 03:18 PM (57)
Complete: 🔍
Submitter: Ruler-Chovy
Cache ID: 244:D9B:40

Submitinfo

Accepted

  • Submit #754200: SECCN SECCN G10 VPN V3.1.0.181203 Unauthorized RCE (by Ruler-Chovy)

Duplicate

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