Logging Vulnerability in Brocade ASCG Affects User Security
CVE-2025-6391

7.1HIGH

Key Information:

Vendor

Broadcom
Status
Brocade Ascg
Vendor
CVE Published:
17 July 2025

What is CVE-2025-6391?

The Brocade ASCG application, prior to version 3.3.0, has a critical issue where it logs JSON Web Tokens (JWT) into log files. This situation allows an unauthorized attacker who has access to these logs to extract unencrypted tokens, potentially leading to unauthorized access, session hijacking, and sensitive information disclosure. It is essential for users of Brocade ASCG to upgrade to the latest version to mitigate the risk associated with this vulnerability.

Affected Version(s)

Brocade ASCG before 3.3.0

References

https://support.broadcom.com/web/ecx/support-content-noti...

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-6391 : Logging Vulnerability in Brocade ASCG Affects User Security