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

Source: https://junglewise.ai/threats/cve-2025-1976-broadcom-brocade-fabric-os-code-injection-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-04-28. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2025-1976 · Severity: critical · CVSS 6.7 · Exploited in the wild · Published 2025-04-28

Broadcom Brocade Fabric OS contains a code injection vulnerability (CWE-94/CWE-78) that allows a local user with administrative privileges to execute arbitrary code with full root privileges. This vulnerability affects versions 9.1.0 through 9.1.1d6, where root access was intended to be restricted.

Vendors: [Broadcom](https://junglewise.ai/threats/vendors/broadcom).

## Quick answers

**Is CVE-2025-1976 exploited in the wild?** Yes. CVE-2025-1976 is known to be exploited in the wild, first recorded on 28 April 2025. Treat it as urgent.

**How severe is CVE-2025-1976?** Critical severity, with a CVSS score of 6.7, published 28 April 2025.

**Which products and versions are affected?** Broadcom Fabric OS 9.1.0 through 9.1.1d6.

**Is there a fix for CVE-2025-1976?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-1976 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2025-1976?** Check whether you run Broadcom Brocade Fabric Os or Broadcom Fabric OS. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Broadcom Fabric OS 9.1.0 through 9.1.1d6

## Timeline

- 2025-04-23: disclosed: Initial CVE entry received from Brocade Communications Systems, LLC
- 2025-04-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2025-04-28: exploited: Reported as exploited in the wild per CISA KEV entry