A vulnerability in the IPv6 stack on Brocade Fibre Channel SAN products running Brocade…
Priority LOW 30Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA.
Summary
A vulnerability in the IPv6 stack on Brocade Fibre Channel SAN products running Brocade Fabric OS (FOS) versions before 7.4.2b, 8.1.2 and 8.2.0 could allow an attacker to cause a denial of service (CPU consumption and device hang) condition by sending crafted Router Advertisement (RA) messages to a targeted system.
Why it matters now
EPSS 0.00542 45th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Brocade | Brocade FABRIC OS | all versions before 7.4.2b, 8.1.2 and 8.2.0 | — | No fix listed | CNA |
- Brocade FABRIC OS VendorBrocade Affected all versions before 7.4.2b, 8.1.2 and 8.2.0 Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:* | before 7.4.2b | Vulnerable | Broadcom |
| cpe:2.3:o:broadcom:fabric_operating_system:8.0.0:*:*:*:*:*:*:* | 8.0.0 | Vulnerable | Broadcom |
| cpe:2.3:o:broadcom:fabric_operating_system:8.0.1:*:*:*:*:*:*:* | 8.0.1 | Vulnerable | Broadcom |
| cpe:2.3:o:broadcom:fabric_operating_system:8.0.2:*:*:*:*:*:*:* | 8.0.2 | Vulnerable | Broadcom |
| cpe:2.3:o:broadcom:fabric_operating_system:8.1.0:*:*:*:*:*:*:* | 8.1.0 | Vulnerable | Broadcom |
| cpe:2.3:o:broadcom:fabric_operating_system:8.1.1:*:*:*:*:*:*:* | 8.1.1 | Vulnerable | Broadcom |
| cpe:2.3:o:broadcom:fabric_operating_system:8.1.2:*:*:*:*:*:*:* | 8.1.2 | Vulnerable | Broadcom |
| cpe:2.3:o:brocade:fabric_os:8.0.2b2:*:*:*:*:*:*:* | 8.0.2b2 | Vulnerable | Brocade |
- cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:* Versions before 7.4.2b Vulnerable ·Broadcom
- cpe:2.3:o:broadcom:fabric_operating_system:8.0.0:*:*:*:*:*:*:* Versions 8.0.0 Vulnerable ·Broadcom
- cpe:2.3:o:broadcom:fabric_operating_system:8.0.1:*:*:*:*:*:*:* Versions 8.0.1 Vulnerable ·Broadcom
- cpe:2.3:o:broadcom:fabric_operating_system:8.0.2:*:*:*:*:*:*:* Versions 8.0.2 Vulnerable ·Broadcom
- cpe:2.3:o:broadcom:fabric_operating_system:8.1.0:*:*:*:*:*:*:* Versions 8.1.0 Vulnerable ·Broadcom
- cpe:2.3:o:broadcom:fabric_operating_system:8.1.1:*:*:*:*:*:*:* Versions 8.1.1 Vulnerable ·Broadcom
- cpe:2.3:o:broadcom:fabric_operating_system:8.1.2:*:*:*:*:*:*:* Versions 8.1.2 Vulnerable ·Broadcom
- cpe:2.3:o:brocade:fabric_os:8.0.2b2:*:*:*:*:*:*:* Versions 8.0.2b2 Vulnerable ·Brocade
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-6227
- 2026-10-03 Alias added: GHSA-hm6f-vf78-gxhc
References
More Brocade Fabric Os vulnerabilities
- TI-2017-04077 Cross-site scripting in Brocade FABRIC OS CVSS 3.0MEDIUM 6.1
Sources
- CVE-2017-6227 · CVE Program
- CVE-2017-6227 · NVD
- FIRST EPSS
- GHSA-hm6f-vf78-gxhc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences