CVE-2026-87669: A missing authorization check in Brocade Fabric OS versions before 10.0.1 REST API interface of affected platf

Q: How do I fix CVE-2026-87669?

fabric operating system: upgrade to 10.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-87669 being exploited?

CVE-2026-87669 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-87669 affect?

CVE-2026-87669 affects fabric operating system. Severity is medium (CVSS 4.3). A missing authorization check in Brocade Fabric OS versions before 10.0.1 REST API interface of affected platform releases allows an authenticated user, regardless of their assigned role or administrative scope, to retrieve complete Monitor

Q: How urgent is CVE-2026-87669?

Priority 17/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2026-87669 is a medium-severity flaw (CVSS 4.3) affecting fabric operating system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A missing authorization check in Brocade Fabric OS versions before 10.0.1 REST API interface of affected platform releases allows an authenticated user, regardless of their assigned role or administrative scope, to retrieve complete Monitoring and Alerting Policy Suite (MAPS) violation data across all logical switches. An attacker with low-privilege API access can leverage this endpoint to dump chassis-wide system health metrics, port performance

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 93%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-10-08
Last modified	2026-10-13

Publisher (CNA): Brocade Communications Systems, LLC · Vendor: broadcom

Last updated 2026-10-13 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-08 03:16 UTCPublished CVE record published
2026-10-13 17:17 UTCUpdated Record last modified

broadcom fabric operating system UPGRADE

Affected: < 10.0.1

Fixed in: 10.0.1

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-87669?

fabric operating system: upgrade to 10.0.1. Exact commands for each OS are on this page.

Is CVE-2026-87669 being exploited?

CVE-2026-87669 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-87669 affect?

CVE-2026-87669 affects fabric operating system. Severity is medium (CVSS 4.3). A missing authorization check in Brocade Fabric OS versions before 10.0.1 REST API interface of affected platform releases allows an authenticated user, regardless of their assigned role or administrative scope, to retrieve complete Monitor

How urgent is CVE-2026-87669?

Priority 17/100. No elevated risk signals yet.

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CVE-2026-94585 HIGH 8.8 UPGRADE An authentication bypass vulnerability exists in the web management interface of Brocade Fabric OS versions be
CVE-2026-94581 MEDIUM 6.8 UPGRADE An OS command injection vulnerability exists in the REST API management interface of Brocade Fabric OS version
CVE-2026-94579 HIGH 8.0 UPGRADE An OS command injection vulnerability exists in the PAM (Pluggable Authentication Module) session cleanup rout

References

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