CVE-2023-31430

Privileged switch crash via secpolicydelete buffer overflow

Published Aug 1, 2023 · Updated Feb 13, 2025

Buffer overflow in the secpolicydelete CLI command in Brocade Fabric OS before 9.1.1c and 9.2.0 allows local users to crash switches. Broadcom identifies the affected command but has not disclosed the buffer-copying locus or the input field whose unchecked length overruns it. Authenticated privileged CLI access is required, and exploitation interrupts switch availability without reported confidentiality or integrity impact.

CVSS severity5.5
Medium
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in the secpolicydelete CLI command in Brocade Fabric OS before 9.1.1c and 9.2.0 allows local users to crash switches. Broadcom identifies the affected command but has not disclosed the buffer-copying locus or the input field whose unchecked length overruns it. Authenticated privileged CLI access is required, and exploitation interrupts switch availability without reported confidentiality or integrity impact.

The record

CVE
CVE-2023-31430
Published
Aug 1, 2023
Updated
Feb 13, 2025
Vendor
Brocade Communications Systems
Product
Brocade Fabric OS
Classifications
CWE-120, T1499.004
Attack vector
local
Privileges
admin

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=before Brocade Fabric OS v9.1.1c and v9.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

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

Published CVSS scores

5.5BroadcomCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

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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