dbcve.org
Fabric Operating SystemOperating system · Broadcom

CVE-2024-7516

HIGH · 7.1 CVSS v3.1 Published 2024-11-12
Fix available
A fix is available. Upgrade to 9.2.2 or later.
See remediation →
74/100
Remediation priority · Elevated
No privileges

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 Brocade Fabric OS versions before 9.2.2 could allow man-in-the-middle attackers to conduct remote Service Session Hijacking that may arise from the attacker's ability to forge an SSH key while the Brocade Fabric OS Switch is performing various remote operations initiated by a switch admin.

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

A man-in-the-middle vulnerability in Brocade Fabric OS versions before 9.2.2 allows attackers to forge SSH keys during remote operations initiated by switch administrators, enabling remote Service Session Hijacking. The flaw exists in how the switch handles SSH key exchange during remote management operations.

MitigationUpgrade Brocade Fabric OS to version 9.2.2 or later. If immediate patching is not feasible, enforce network segmentation and monitor for suspicious SSH handshake anomalies on fabric management interfaces.

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:< 9.2.2

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
Adjacent
Complexity
High
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/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. Check the installed Fabric OS version
    Execute the command to display the switch firmware version (commonly 'version' or 'firmwareshow' in the Fabric OS CLI) and locate the version number in the output
    Affected if The version displayed is earlier than 9.2.2 (for example, 9.2.1, 9.1.x, 9.0.x, or earlier)
  2. Verify SSH is enabled for remote management
    Check the Fabric OS configuration for SSH service settings (commonly via 'sshutil show' or 'sshcfg --show' command in the CLI)
    Affected if SSH remote management is enabled and the Fabric OS version is below 9.2.2
  3. Confirm remote access is accessible on management interfaces
    Inspect the management network configuration to determine if the fabric management interfaces are reachable over the network (check interfaces such as fabos, eth0, or mgmt0)
    Affected if The switch has IP connectivity on management interfaces and runs a vulnerable Fabric OS version
  4. Review SSH key exchange configuration
    Examine the SSH service configuration for key exchange algorithm settings (if accessible via 'sshutil' or similar Fabric OS utilities)
    Affected if Default SSH key exchange settings are in use and the Fabric OS version is before 9.2.2

A system is affected if it runs any version of Broadcom Fabric OS earlier than 9.2.2 with SSH remote management enabled on accessible network interfaces.

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 9.2.2 or later
Fixed in 9.2.2
Interim mitigation

Upgrade Brocade Fabric OS to version 9.2.2 or later. If immediate patching is not feasible, enforce network segmentation and monitor for suspicious SSH handshake anomalies on fabric management interfaces.

Recommended fix High confidence

Fabric OS 9.2.2

  1. 1. Log in to the Brocade Fabric OS switch as admin
  2. 2. Run 'version' or 'firmwareShow' command to confirm current Fabric OS version is below 9.2.2
  3. 3. Download Fabric OS version 9.2.2 or later from the Broadcom Support Portal (support.broadcom.com)
  4. 4. Upload the firmware to the switch using 'firmwareDownload' command or through Fabric OS Web Tools
  5. 5. After the firmware upload completes, reboot the switch using 'reboot' command
  6. 6. Once the switch restarts, verify the new version with 'version' command to confirm 9.2.2 or later is installed

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

Fix this in Fabric Operating System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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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-2024-7516 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