RCE in Brocade Fabric Os
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 (74.0th percentile) — read the EPSS interpretation.
Affected products
- Brocade Fabric Os — versions Fabric OS versions 9.1.0 through 9.1.1d6
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 vulnerability in Brocade Fabric Os, classified under Code Injection. Published 2025-04-24.
- 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.