CVE-2025-6391— JSON Web Token (JWT) Exposure in Log Files
Quick assessment
Affected
Broadcom Brocade ASCG
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Brocade ASCG是美国博科（Brocade）公司的一种网络功能，主要用于简化SAN架构和优化资源利用。 Brocade ASCG 3.3.0之前版本存在日志信息泄露漏洞，该漏洞源于日志文件中记录未加密的JWT令牌，可能导致未授权访问和会话劫持。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-6391
Vulnerability Information
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Vulnerability Title
JSON Web Token (JWT) Exposure in Log Files
Source: CVE Program / CVE List V5
Vulnerability Description
Brocade ASCG before 3.3.0 logs JSON
Web Tokens (JWT) in log files. An attacker with access to the log files
can withdraw the unencrypted tokens with security implications, such as
unauthorized access, session hijacking, and information disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Brocade ASCG 日志信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Brocade ASCG是美国博科（Brocade）公司的一种网络功能，主要用于简化SAN架构和优化资源利用。 Brocade ASCG 3.3.0之前版本存在日志信息泄露漏洞，该漏洞源于日志文件中记录未加密的JWT令牌，可能导致未授权访问和会话劫持。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Broadcom | Brocade ASCG | before 3.3.0 | - |
|
II. Public POCs for CVE-2025-6391
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Broadcom · 2025-07-17 · 3 CVEs total
| CVE-2025-7398 | Medium Strength Cipher Suites detected on port on ports 9000 and 8036 | |
| CVE-2025-7397 | CLI history displays inline passwords |
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V. Comments for CVE-2025-6391
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