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CVE-2026-126759

H3C ICG2000 Unified Communication Gateway Web Management check.j missing authentication

  • Medium 6.9

Description

A flaw has been found in H3C ICG2000 Unified Communication Gateway 2023. This issue affects some unknown processing of the file /wnm/check.j of the component Web Management Module. Executing a manipulation can lead to missing authentication. The attack may be performed from remote. The exploit has been published and may be used. The researcher claims that the vendor has acknowledged receipt of the vulnerability report. No further response has been received.

Key facts

Published
11 Nov 2026
Last changed
12 Nov 2026
Assigned by
VulDB
EPSS
0.397% likely to be exploited in the next 30 days, higher than 34.395% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: none; Automatable: yes; Technical impact: partial

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 6.9CVSS 4.0, Mediumfrom the CNA (VulDB)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
  • 5.3CVSS 3.1, Mediumfrom the CNA (VulDB)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
  • 5.3CVSS 3.0, Mediumfrom the CNA (VulDB)CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
  • 5.0CVSS 2.0, Mediumfrom the CNA (VulDB)AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
H3CICG2000 Unified Communication Gateway
  • 2023 (affected)

Timeline

  1. 11 Nov 2026 Advisory disclosed
  2. 11 Nov 2026 VulDB entry created
  3. 11 Nov 2026 VulDB entry last update
  4. 11 Nov 2026 Published

Weakness

References