CVE-2026-87662: Brocade Fabric versions before 9.2.2d and 10.0.0 through 10.0.0a1 handling of specific download protocols util

Q: How do I fix CVE-2026-87662?

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

Q: Is CVE-2026-87662 being exploited?

CVE-2026-87662 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-2026-87662 affect?

CVE-2026-87662 affects fabric operating system. Severity is medium (CVSS 6.7). Brocade Fabric versions before 9.2.2d and 10.0.0 through 10.0.0a1 handling of specific download protocols utilizes unsanitized parameter strings. When processing upgrade requests, parameters are converted into system command strings and exe

Q: How urgent is CVE-2026-87662?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 6.7UPGRADE

CVE-2026-87662 is a medium-severity flaw (CVSS 6.7) affecting fabric operating system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Brocade Fabric versions before 9.2.2d and 10.0.0 through 10.0.0a1 handling of specific download protocols utilizes unsanitized parameter strings. When processing upgrade requests, parameters are converted into system command strings and executed through a system shell interface. Because control characters and shell metacharacters in fields like the host or file path are not stripped or sanitized, an attacker can execute arbitrary shell commands w

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.7 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 83%)
CISA exploited list	No
Weakness	CWE-78
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 05:17 UTCPublished CVE record published
2026-10-14 19:32 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-2026-87662?

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

Is CVE-2026-87662 being exploited?

CVE-2026-87662 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-2026-87662 affect?

CVE-2026-87662 affects fabric operating system. Severity is medium (CVSS 6.7). Brocade Fabric versions before 9.2.2d and 10.0.0 through 10.0.0a1 handling of specific download protocols utilizes unsanitized parameter strings. When processing upgrade requests, parameters are converted into system command strings and exe

How urgent is CVE-2026-87662?

Priority 28/100. No elevated risk signals yet.

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References

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