CVE-2026-2686

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 81.6% of scored records. A rank, not a probability.

NVD base score

8.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD 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/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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-02-19 00:02Z6 MO AGO

Last updated

2026-02-24 15:49Z6 MO AGO

Reserved

2026-02-18

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA 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

Weaknesses

• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

20a774fdaf0513abd78345d75e80e43e1cb792ab73bd0c1d365ca7d6e3a5b1ac

• vuldb.comVDB-346488 | SECCN Dingcheng G10 session_login.cgi qq os command injectionhttps://vuldb.com/?id.346488vdb-entrytechnical-description
• vuldb.comVDB-346488 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.346488signaturepermissions-required
• vuldb.comSubmit #754200 | SECCN SECCN G10 VPN V3.1.0.181203 Unauthorized RCEhttps://vuldb.com/?submit.754200third-party-advisory
• github.comhttps://github.com/cha0yang1/SECCN/blob/main/UnauthorizedRCE.mdrelated
• github.comhttps://github.com/cha0yang1/SECCN/blob/main/UnauthorizedRCE.md#2-vulnerability-reproduction-proof-of-conceptexploit