EUVD-2026-94669
GHSA-6chm-ccv7-wvw7
Severity by source
CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Adjacent management-network vector (AV:A), authenticated low-priv account (PR:L), and the need to inject crafted IdP attributes make it AC:H; successful role bypass yields full root-equivalent control, so C/I/A High.
Primary rating from Vendor (brocade).
CVSS VectorVendor: brocade
Lifecycle Timeline
3DescriptionCVE.org
Brocade Fabric OS versions before 10.0.1 contain an authorization logic vulnerability in the AAA (Authentication, Authorization, and Accounting) integration framework allows remote authenticated users to gain root-equivalent chassis access controls. By returning specific, crafted Vendor-Specific Attributes (VSAs) or directory claims from an external identity provider (such as RADIUS, LDAP, TACACS+, or Federated IDP), an account can bypass administrative role restriction checks during session establishment.
AnalysisAI
Privilege escalation in Brocade Fabric OS (versions before 10.0.1) allows a low-privilege authenticated account to obtain root-equivalent chassis administrative access when the switch is configured to use an external AAA identity source. The switch fails to constrain crafted Vendor-Specific Attributes or directory claims returned by RADIUS, LDAP, TACACS+, or a Federated IdP against its administrative role restrictions during session establishment, so an attacker who can influence those returned attributes is granted full control. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the switch to be configured for external AAA integration (RADIUS, LDAP, TACACS+, or a Federated IDP) - deployments using only local authentication are not affected. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but conditional privilege-escalation issue rather than a mass-exploitation emergency. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: upgrade to Brocade Fabric OS 10.0.1 or later, as directed by Broadcom/Brocade Security Advisory 39150 (https://support.broadcom.com/external/content/SecurityAdvisories/0/39150). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all Brocade Fabric OS switches and flag every device running a version below 10.0.1 that is configured to authenticate administrators against an external AAA source (RADIUS, LDAP, TACACS+, or a federated IdP); restrict management-plane access to a hardened jump host or dedicated management VLAN and notify the identity team to monitor for anomalous role or group attribute changes. …
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Same weakness CWE-269 – Improper Privilege Management
View allSame technique Privilege Escalation
View allShare
External POC / Exploit Code
Leaving vuln.today