Missing Authentication Flaw in H3C ICG2000 Unified Communication Gateway
CVE-2026-126759

6.9MEDIUM

Key Information:

Vendor

H3c
Status
Icg2000 Unified Communication Gateway
Vendor
CVE Published:
11 November 2026

What is CVE-2026-126759?

A vulnerability has been identified in the H3C ICG2000 Unified Communication Gateway, specifically within the Web Management Module. This flaw lies in the processing of the file /wnm/check.j, which is susceptible to manipulation that allows missing authentication. The potential for remote attackers to exploit this issue has been confirmed. While the vendor has acknowledged the receipt of the vulnerability report, further action or response remains pending.

Affected Version(s)

ICG2000 Unified Communication Gateway 2023

References

https://vuldb.com/vuln/435869
vdb-entry
https://vuldb.com/vuln/435869/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-126759
third-party-advisory

CVSS V4

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

bruce_xiaowei (VulDB User)
VulDB CNA Team
.