CVE-2023-31427

Local privilege escalation via full path names

Published Aug 1, 2023 · Updated Feb 13, 2025

Brocade Fabric OS before 9.1.1c or 9.2.0 allows local users to execute commands beyond assigned privileges using full path names. Broadcom has not identified the affected command or disclosed how use of full path names bypasses privilege enforcement. An authenticated local account and knowledge of internal full paths are required; successful exploitation permits any command regardless of the assigned role.

CVSS severity7.8
High
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Brocade Fabric OS before 9.1.1c or 9.2.0 allows local users to execute commands beyond assigned privileges using full path names. Broadcom has not identified the affected command or disclosed how use of full path names bypasses privilege enforcement. An authenticated local account and knowledge of internal full paths are required; successful exploitation permits any command regardless of the assigned role.

The record

CVE
CVE-2023-31427
Published
Aug 1, 2023
Updated
Feb 13, 2025
Vendor
Brocade Communications Systems
Product
Fabric OS
Classifications
CWE-22, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 1, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=after 9.1.0 and before Brocade Fabric OS v9.2.0 and v9.1.1c

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Brocade Communications Systems · Fabric OSversion=after 9.1.0 and before Brocade Fabric OS v9.2.0 and v9.1.1c

Published CVSS scores

7.8Brocade Communications SystemsCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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