Denial of Service Vulnerability in BLU-IC2 and BLU-IC4 by Azure
CVE-2025-12423

10CRITICAL

Key Information:

Vendor

Azure Access Technology

Status
Blu-ic2
Blu-ic4
Vendor
CVE Published:
28 October 2025

What is CVE-2025-12423?

A protocol manipulation vulnerability has been identified in the BLU-IC2 and BLU-IC4 products, potentially leading to a denial of service scenario. This weakness allows attackers to manipulate the communication protocols, causing disruptions in service availability for affected versions up to 1.19.5. Users are advised to review their configurations and apply necessary updates to safeguard their systems.

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Deploy the Patch

Affected Version(s)

BLU-IC2 0 <= 1.19.5

BLU-IC4 0 <= 1.19.5

References

https://azure-access.com/security-advisories

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kevin Schaller
Benjamin Lafois
Alexi Bitsios
Sebastian Toscano
Dominik Schneider
JSON
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