CVE-2025-1976: Broadcom Brocade Fabric OS Code Injection Vulnerability

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: yes — in CISA KEV since 2025-04-28
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-04-24 · updated 2026-06-17
Weakness: CWE-94

Description

Brocade Fabric OS versions starting with 9.1.0 have root access removed, however, a local user with admin privilege can potentially execute arbitrary code with full root privileges on Fabric OS versions 9.1.0 through 9.1.1d6.

Affected products

Brocade Fabric OS: from 9.1.0 before 9.1.1d7 — fixed in 9.1.1d7

How to fix

Upgrade to a fixed version: Brocade Fabric OS 9.1.1d7. Check the vendor advisory for mitigations.

References

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/25602
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-1976

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