CVE-2025-43724

Unauthorized share access via user-controlled key

Published Oct 8, 2025 · Updated Oct 8, 2025

Authorization bypass in Dell PowerScale OneFS before 9.12.0.0 allows local users with high privileges to access NFSv4 or SMB shares. Dell has not disclosed which share-authorization locus accepts a user-controlled key or how that key bypasses access checks. Exploitation requires high privileges and local access; Dell reports unauthorized share access without specifying the permitted operations.

CVSS severity4.2
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Dell PowerScale OneFS before 9.12.0.0 allows local users with high privileges to access NFSv4 or SMB shares. Dell has not disclosed which share-authorization locus accepts a user-controlled key or how that key bypasses access checks. Exploitation requires high privileges and local access; Dell reports unauthorized share access without specifying the permitted operations.

The record

CVE
CVE-2025-43724
Published
Oct 8, 2025
Updated
Oct 8, 2025
Vendor
Dell Technologies
Product
PowerScale OneFS
Classifications
CWE-639
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Oct 8, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 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=N/A <9.12.0.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Dell Technologies · PowerScale OneFSversion=N/A <9.12.0.0

Published CVSS scores

4.2Dell TechnologiesCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

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-639Authorization Bypass Through User-Controlled Key

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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