Vulnerability record

CVE-2025-1976

Broadcom Brocade Fabric OS Code Injection Vulnerability

Severity: HighExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Brocade Fabric OS, fix it now.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

US federal civilian agencies must remediate by May 19, 2025.

Patch status

No official fix confirmed yet

Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.

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.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorSource
Brocade Fabric OSVMware (Broadcom)KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2025-1976 scored CVSS 8.6: Broadcom Brocade Fabric OS, Broadcom Brocade Fabric OS Code Injection Vulnerability

    CISA lists this as exploited in the wild. Unpatched Brocade Fabric OS systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

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Coverage

We have not published a story about this vulnerability yet.

References

  • support.broadcom.com https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/2560…
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2025-1976
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-1976