SQL Injection Vulnerability in ESAFENET CDG Product by Beijing Yisaitong Technology
CVE-2026-18859

6.9MEDIUM

Key Information:

Vendor

Esafenet

Status
Cdg
Vendor
CVE Published:
5 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18859?

A vulnerability has been discovered in the ESAFENET CDG product, where improper handling of the 'keyid' parameter in the file '/CDGServer3/ukey/usbkey;logindojojs' allows attackers to execute SQL injection attacks. This flaw exposes systems to potential unauthorized access and manipulation of the database by allowing remote attackers to inject malicious SQL commands. The publicly available exploit increases the risk of successful attacks on vulnerable installations. The vendor was notified about this issue but has not provided a response or mitigation steps.

Affected Version(s)

CDG 20260615

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-18859 - Proof of Concept

References

https://vuldb.com/vuln/385869
vdb-entrytechnical-description
https://vuldb.com/vuln/385869/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18859
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

red88-debug (VulDB User)
VulDB CNA Team
.