CVE-2026-85423: CWE-306: Missing Authentication for Critical Function in Brocade Brocade Active Support Connectivity Gateway
Description
A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0. An API endpoint within the data collector service fails to perform authentication or authorization checks on incoming requests. An attacker with network access to the service can instruct the application to establish SSH connections to arbitrary hosts and execute arbitrary system commands, effectively turning the appliance into an unauthenticated proxy or execution vector.
CVSS v4.0
Score 8.6high
Affected software
Brocade
Brocade Active Support Connectivity Gateway
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-85423 affects the data collection service of Brocade ASCG versions prior to 3.5.0. An API endpoint within this service fails to enforce authentication or authorization on incoming requests. An attacker with network access can exploit this flaw to instruct the application to establish SSH connections to arbitrary hosts and execute arbitrary system commands, thereby compromising the appliance's security and potentially the broader network environment.
Potential Impact
An attacker can remotely execute arbitrary system commands without authentication by leveraging the vulnerable API endpoint. This can lead to unauthorized command execution, turning the affected appliance into an unauthenticated proxy or execution vector, which poses a significant security risk to the network and connected systems.
Mitigation Recommendations
No patch or official fix information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the data collection service to trusted sources only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- brocade
- Date Reserved
- 2026-09-03T19:44:37.306Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ac73cd82cdf04f656f313ed
Added to database: 10/08/2026, 06:48:56 UTC
Last enriched: 10/08/2026, 07:03:41 UTC
Last updated: 10/09/2026, 06:48:20 UTC
Views: 17
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