VulnerabilityPublished 10 Apr 2025Updated 26 Feb 2026

CVE-2025-27690: Dell PowerScale OneFS · Use of Default Password

Affects Dell PowerScale OneFSSource CVE Database V5

Not known to be exploited · CVSS 9.8 Critical.

Data as of 26 Oct 2026, 12:55 UTC

CVSS 3.1 base score

9.8Critical

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.4% chance of exploitation in 30 days – higher than 41% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: High: There is total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact.
Integrity: High: There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Apr 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Dell PowerScale OneFS	Affected 9.5.0.0 – 9.10.0.0 5 affected builds	Fixed in–

AI-suggested

To mitigate CVE-2025-27690 effectively, organizations should immediately audit all Dell PowerScale OneFS systems to identify affected versions. Until official patches are released, the following specific actions are recommended: 1) Disable or change any default passwords on the affected systems, ensuring strong, unique credentials are used for all administrative accounts. 2) Restrict network access to management interfaces of PowerScale OneFS systems using firewalls, VPNs, or network segmentation to limit exposure only to trusted administrators. 3) Implement multi-factor authentication (MFA) where supported to add an additional layer of security beyond passwords. 4) Monitor logs and network traffic for unusual authentication attempts or access patterns indicative of exploitation attempts. 5) Apply strict access control policies and least privilege principles to minimize potential damage if compromise occurs. 6) Stay informed on Dell’s security advisories and apply official patches or updates as soon as they become available. 7) Conduct regular security assessments and penetration testing focused on storage infrastructure to detect and remediate similar vulnerabilities proactively. These targeted measures go beyond generic advice by focusing on immediate password management, network access controls, and proactive monitoring tailored to the nature of this vulnerability.

Description

Dell PowerScale OneFS, versions 9.5.0.0 through 9.10.1.0, contains a use of default password vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to the takeover of a high privileged user account.

Impact

The impact of CVE-2025-27690 is severe for organizations worldwide using Dell PowerScale OneFS in affected versions. An attacker exploiting this vulnerability can gain unauthorized administrative access remotely without authentication, leading to complete system compromise. This can result in unauthorized data access, data theft, data manipulation, or deletion, severely impacting data confidentiality and integrity. Availability can also be affected if attackers disrupt storage services or deploy ransomware or destructive payloads. Given the critical role of PowerScale OneFS in enterprise storage infrastructures, such a compromise could disrupt business operations, cause significant financial losses, and damage organizational reputation. Additionally, attackers could leverage compromised systems as footholds for lateral movement within corporate networks, escalating the overall risk. The lack of required user interaction and ease of exploitation increase the likelihood of attacks, especially in environments with exposed management interfaces or insufficient network segmentation. Organizations in sectors with high data sensitivity, such as finance, healthcare, government, and large enterprises, face heightened risks due to the potential exposure of critical or regulated data.

CWE-1393Use of Default Password (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product uses default passwords for potentially critical functionality.
Requirements
Prohibit use of default, hard-coded, or other values that do not vary for each installation of the product - especially for separate organizations.
Documentation
Ensure that product documentation clearly emphasizes the presence of default passwords and provides steps for the administrator to change them.
Architecture and Design
Force the administrator to change the credential upon installation.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V2.8.5 (opens in a new tab)
V2.8.4 (opens in a new tab)
V9.2.3 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

dell.com/support/kbdoc/en-us/000300860/dsa-2025-119-security-update-for-dell-powerscale-onefs-for-multiple-security-vulnerabilities (opens in a new tab)

Community reviews

Loading reviews…

Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Feb 2026, 19:59 UTC

WeaknessesCWE-1393

Technical details

References

Community reviews

Related threats