A critical security vulnerability has been identified in Brocade ASCG versions before 3.5.0. (CVE-2026-85421)
Description
A critical vulnerability in Brocade ASCG versions before 3.5.0 allows unauthenticated attackers with network access to bypass authentication and access controls on the HTTPS service. This enables them to issue control commands, alter cluster states, and modify system configurations, potentially leading to a full compromise of the streaming service control plane.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-85421 is a critical security vulnerability affecting Brocade ASCG versions prior to 3.5.0. The HTTPS service does not properly enforce authentication or access control checks on incoming requests. As a result, an unauthenticated attacker with network access can issue control commands, change cluster states, and modify system configurations, compromising the streaming service control plane entirely. The CVSS v3.1 score is 8.8, reflecting high impact on confidentiality, integrity, and availability.
Potential Impact
An attacker can gain unauthorized control over the streaming service control plane, allowing them to manipulate cluster states and system configurations without authentication. This can lead to a complete compromise of the affected system's control functions, severely impacting service availability and security.
Mitigation Recommendations
A fix is available in Brocade ASCG version 3.5.0 and later. Users should upgrade to version 3.5.0 or above to remediate this vulnerability. No additional mitigation guidance is provided, and patching is the recommended action.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-8gf9-p92h-6gg3
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-85421"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ad008992cdf04f656b90d43
Added to database: 10/14/2026, 22:56:25 UTC
Last enriched: 10/14/2026, 23:01:25 UTC
Last updated: 10/15/2026, 03:48:08 UTC
Views: 7
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.