Skip to main content

Boteraser | Website and Server Security Solutions

🛡️ CVE-2023-28531 — brocade-fabric-operating-system

🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-284 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-28531 is classified as CWE-284: Improper Access Control. The software does not restrict an action to the actors that should be allowed to perform it.

Affected software

CVE-2023-28531 is recorded against 4 packages.

  • brocade-fabric-operating-system
  • hci-bootstrap-os
  • openssh (from 8.9 up to 9.3)
  • solidfire-element-os

Timeline and source

Published on 17 March 2023 and last revised on 14 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

lists.fedoraproject.org
security.gentoo.org
security.netapp.com
www.debian.org
www.openwall.com
lists.fedoraproject.org
lists.fedoraproject.org
security.gentoo.org
security.netapp.com
www.debian.org
www.openwall.com
cert-portal.siemens.com
cert-portal.siemens.com

Other advisories for this package

brocade-fabric-operating-system has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-284: Improper Access Control) in other software:

CVE-2023-28531 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-284
Public Exploit ✅ No
Source NVD
Published 2023-03-17
Updated 2026-08-20
Modified 2026-07-14
Fix URL N/A

Affected Packages

Software From version Fixed in
brocade-fabric-operating-system — —
hci-bootstrap-os — —
openssh 8.9 9.3
solidfire-element-os — —

References

Similar Threats

Exploit Protection

Are you running brocade-fabric-operating-system?

CVE-2023-28531 carries CVSS 9.8 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

Check My Site For CVE-2023-28531 →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

Browse related advisories

All advisoriesCVECVE 2023
✓