RCE in Broadcom Fabric_operating_system

CVE-2025-1976

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.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.008 (50.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: .

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.

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-1976?
CVE-2025-1976 is a medium-severity vulnerability in Broadcom Fabric_operating_system, classified under Code Injection. CVSS score: 6.7/10. Published 2025-04-24.
How severe is CVE-2025-1976?
Medium severity. CVSS v3 base score is 6.7 out of 10.
Is CVE-2025-1976 known to be exploited?
Yes. CVE-2025-1976 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-04-28), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.