CVE-2025-27690Network attack vector

Unauthenticated account takeover via default passwords

Published Apr 10, 2025 · Updated Feb 26, 2026

Use of default passwords in Dell PowerScale OneFS 9.5.0.0 through 9.10.1.0 allows remote attackers to take over privileged accounts. System-zone file-provider accounts retain default passwords, and affected configurations permit modification of privileged built-in users. Network access without prior authentication is sufficient, and account takeover grants the compromised account's privileges over cluster data and configuration.

CVSS severity9.8
Critical
EPSS probability0.47%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of default passwords in Dell PowerScale OneFS 9.5.0.0 through 9.10.1.0 allows remote attackers to take over privileged accounts. System-zone file-provider accounts retain default passwords, and affected configurations permit modification of privileged built-in users. Network access without prior authentication is sufficient, and account takeover grants the compromised account's privileges over cluster data and configuration.

The record

CVE
CVE-2025-27690
Published
Apr 10, 2025
Updated
Feb 26, 2026
Vendor
Dell Technologies
Product
PowerScale OneFS
Classifications
CWE-1393, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record 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=9.10.0.0 <=9.10.1.0
  2. Affected versionversion=9.5.0.0 <=9.5.1.2
  3. Affected versionversion=9.6.0.0 <=9.7.1.6
  4. Affected versionversion=9.8.0.0 <=9.8.0.2
  5. Affected versionversion=9.9.0.0 <=9.9.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Dell Technologies · PowerScale OneFSversion=9.10.0.0 <=9.10.1.0; version=9.5.0.0 <=9.5.1.2; version=9.6.0.0 <=9.7.1.6; version=9.8.0.0 <=9.8.0.2; version=9.9.0.0 <=9.9.0.1

Published CVSS scores

9.8DellCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1393Use of Default Password
T1078.001Valid Accounts: Default Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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