How severe is CVE-2025-1976?

CVE-2025-1976 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-1976 being actively exploited?

Yes. CVE-2025-1976 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-04-28, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2025-1976?

CVE-2025-1976 affects Broadcom Fabric Operating System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-1976?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2025-1976 have an EU (EUVD) identifier?

Yes. CVE-2025-1976 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12147. It is also flagged as exploited in the EUVD (since 2025-04-28).

When was CVE-2025-1976 published?

CVE-2025-1976 was published on 2025-04-24 and last updated on 2026-06-17.

CVE-2025-1976

CVE-2025-1976 is a medium-severity vulnerability in Broadcom Fabric Operating System with a CVSS 3.x base score of 6.7. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-04-28). The underlying weakness is classified as CWE-78.

Key facts

Severity: Medium (CVSS 3.x base score 6.7)
CVSS v4: 8.6
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-04-28)
EU (EUVD) id: EUVD-2025-12147
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-04-28)
Weakness: CWE-78
Affected product: Broadcom Fabric Operating System
Published: 2025-04-24
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2025-1976?: CVE-2025-1976 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-1976 being actively exploited?: Yes. CVE-2025-1976 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-04-28, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2025-1976?: CVE-2025-1976 affects Broadcom Fabric Operating System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-1976?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2025-1976 have an EU (EUVD) identifier?: Yes. CVE-2025-1976 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12147. It is also flagged as exploited in the EUVD (since 2025-04-28).
When was CVE-2025-1976 published?: CVE-2025-1976 was published on 2025-04-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*

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