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Fabric Operating SystemOperating system · Broadcom

CVE-2022-33184

HIGH · 7.8 CVSS v3.1 Published 2022-10-25
Fix available
A fix is available. Upgrade to 7.4.2.j / 8.2.3c or later.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability in fab_seg.c.h libraries of all Brocade Fabric OS versions before Brocade Fabric OS v9.1.1, v9.0.1e, v8.2.3c, v8.2.0_cbn5, 7.4.2j could allow local authenticated attackers to exploit stack-based buffer overflows and execute arbitrary code as the root user account.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Stack-based buffer overflow vulnerability in fab_seg.c.h library of Brocade Fabric OS allows local authenticated attackers to execute arbitrary code with root privileges. The vulnerability affects all versions prior to v9.1.1, v9.0.1e, v8.2.3c, v8.2.0_cbn5, and 7.4.2j.

MitigationUpgrade Brocade Fabric OS to version v9.1.1, v9.0.1e, v8.2.3c, v8.2.0_cbn5, or 7.4.2j or later to remediate this vulnerability.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Fabric Operating SystemOperating system
Affected:< 7.4.2.j>= 8.0.0, < 8.2.3c>= 9.0.0, < 9.0.1e

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the product
    Confirm the system is running Brocade Fabric OS (also branded as Broadcom Fabric OS). Check the system prompt, boot messages, or use 'version' command on the console.
    Affected if The product is Brocade/Broadcom Fabric OS.
  2. Determine the Fabric OS version
    Run the 'version' command or check the FOS prompt display to obtain the exact installed version number.
    Affected if The installed version is revealed and can be compared to affected ranges.
  3. Compare version to affected ranges
    Check if the installed version falls into any of these ranges: versions prior to 7.4.2j; versions 8.0.0 through 8.2.3c (excluding 8.2.3c); versions 9.0.0 through 9.0.1e (excluding 9.0.1e).
    Affected if The version is < 7.4.2j, OR >= 8.0.0 and < 8.2.3c, OR >= 9.0.0 and < 9.0.1e.
  4. Verify local authentication is configured
    Confirm local user accounts exist on the Fabric OS system via 'userconfig --show' or similar local account management commands.
    Affected if Local authenticated users can access the system, making the local buffer overflow exploitable.

A system is affected if it runs Brocade Fabric OS with a version in the vulnerable ranges AND allows local authenticated access.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 7.4.2.j / 8.2.3c / 9.0.1e or later
Fixed in 7.4.2.j8.2.3c9.0.1e
Interim mitigation

Upgrade Brocade Fabric OS to version v9.1.1, v9.0.1e, v8.2.3c, v8.2.0_cbn5, or 7.4.2j or later to remediate this vulnerability.

Recommended fix High confidence

Upgrade to Fabric OS 7.4.2j (for 7.x), 8.2.3c (for 8.x), or 9.0.1e/9.1.1 (for 9.x) or later - choose the appropriate version based on your current major branch

  1. Identify the currently installed Fabric Operating System version using 'version' or 'firmwareShow' command
  2. For Fabric OS 7.x versions: upgrade to version 7.4.2j or later
  3. For Fabric OS 8.x versions: upgrade to version 8.2.3c, 8.2.0_cbn5, or later
  4. For Fabric OS 9.x versions: upgrade to version 9.0.1e, 9.1.1, or later
  5. Verify the upgrade was successful using 'version' command
  6. Apply any post-upgrade best practices per Brocade documentation
Caveat Review Brocade release notes for any feature changes or migration considerations between versions; test in non-production environment first

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Fabric Operating System Scoped from the published advisory
  • Consultation6.0 h
  • Implementation8.0 h
  • Testing8.0 h
  • Review / QA4.0 h
26.0 hours of engineering $4,560
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-33184 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data