CVE-2026-87688: An input validation vulnerability exists in the security certificate management component of the Brocade Fabri

Q: How do I fix CVE-2026-87688?

fabric operating system: upgrade to 9.2.2d, 10.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-87688 being exploited?

CVE-2026-87688 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-2026-87688 affect?

CVE-2026-87688 affects fabric operating system. Severity is medium (CVSS 6.8). An input validation vulnerability exists in the security certificate management component of the Brocade Fabric OS administrative management API. When processing certificate management operations, user-supplied certificate identifiers are h

Q: How urgent is CVE-2026-87688?

Priority 24/100. No elevated risk signals yet.

Routine

MEDIUM 6.8UPGRADE

CVE-2026-87688 is a medium-severity flaw (CVSS 6.8) affecting fabric operating system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An input validation vulnerability exists in the security certificate management component of the Brocade Fabric OS administrative management API. When processing certificate management operations, user-supplied certificate identifiers are handled without adequate sanitization prior to execution in external system routines. An authenticated attacker with privileges to perform certificate deletion requests can leverage this flaw to execute arbitrar

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-77
Published	2026-10-08
Last modified	2026-10-14

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

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-08 04:17 UTCPublished CVE record published
2026-10-14 19:16 UTCUpdated Record last modified

broadcom fabric operating system UPGRADE

Affected: < 9.2.2d · >= 10.0.0 and < 10.0.1

Fixed in: 9.2.2d, 10.0.1

Safe to downgrade to: a release before 10.0.0

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-2026-87688?

fabric operating system: upgrade to 9.2.2d, 10.0.1. Exact commands for each OS are on this page.

Is CVE-2026-87688 being exploited?

CVE-2026-87688 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-2026-87688 affect?

CVE-2026-87688 affects fabric operating system. Severity is medium (CVSS 6.8). An input validation vulnerability exists in the security certificate management component of the Brocade Fabric OS administrative management API. When processing certificate management operations, user-supplied certificate identifiers are h

How urgent is CVE-2026-87688?

Priority 24/100. No elevated risk signals yet.

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References

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