CVE-2025-1976Code injection exposure in Fabric OS 9.1.0 through 9.1.1d6

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.

8.6 HIGHEPSS 0.69%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 08:40 UTC

OverviewCVSS details

8.6HIGHCVSS 4.0

Score source: brocade (CNA)
NVD status: Analyzed
Published: Apr 24, 2025
Assigner: brocade

Affected

Fabric OS (Brocade)

Versions: Fabric OS versions 9.1.0 through 9.1.1d6

Exploitation

Public exploit: None listed
CISA KEV: Listed · Apr 28, 2025
KEV due date: May 19, 2025
Ransomware use: Unknown
SSVC: Exploitation active · Automatable no · Impact total

EPSS · FIRST, scored Nov 7

0.69%chance of exploitation in 30 days

Higher than 53.03% of CVEs

CVSS 4.0 · brocade (CNA)

8.6High

CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack vector: Adjacent
Attack complexity: Low
Attack requirements: None
Privileges required: Low
User interaction: None
Confidentiality impact: High
Integrity impact: High
Availability impact: High
Confidentiality (other systems): None
Integrity (other systems): None
Availability (other systems): None

CVSS 3.1 · NVD

6.7Medium

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack vector: Local
Attack complexity: Low
Privileges required: High
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

NVD status: Analyzed

Overview Affected Products References

NVD CVE.org

Overview

Severity

Score	Severity	Version	Vector String
8.6	HIGH	4.0brocade (CNA)	CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
6.7	MEDIUM	3.1NVD	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CISA required action

⚡ Known exploited · remediation due May 19, 2025

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

Details

CVE ID: CVE-2025-1976
Status: Analyzed
Assigner (CNA): brocade
Published: Apr 24, 2025
Last modified: 2026-06-17 08:40 UTC
Weaknesses: CWE-94 · Improper Control of Generation of Code ('Code Injection')
CWE-78

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 11:47 UTC.