Vulnerability details
CVE-2026-87664
Brocade Fabric OS
CVSS 4.0
8.5High
Official description
A session context forgery vulnerability exists in the web management daemon of Brocade Fabric OS versions 9.2.2d and 10.0.0 through 10.0.0a1. When processing local inter-process communication (IPC) storage callbacks, the service accepts and registers session structures including administrative role permissions, user identifiers, and authorization flags—without verifying the identity or authenticity of the sending process. An attacker can obtain elevated administrative privileges on the web management interface without legitimate authentication.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.5High | 4.0 | CVEProject cvelistV5 (CNA) (brocade) | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Brocade | Fabric OS | v < 9.2.2d | CVEProject cvelistV5 (CNA) |
| Brocade | Fabric OS | 10.0.0 ≤ v ≤ 10.0.0a1 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-10-08
- Last updated
- 2026-10-09
- State
- Published
- Assigner (CNA)
- brocade
Exploit prediction (EPSS)
0.11%
Probability of exploitation in 30 days
1.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-306Missing Authentication for Critical Function