PowerScale OneFS: Overly Restrictive Account Lockout Mechanism
CVE-2026-25907 is a high-severity overly restrictive account lockout mechanism vulnerability in PowerScale OneFS from Dell, with a CVSS 3.1 base score of 7.5 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 9.13.0.1 or later as the first without the flaw, so updating PowerScale OneFS to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.3% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update PowerScale OneFS to 9.13.0.1 or later or a later version.
- Read the advisory on dell.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Dell | PowerScale OneFS | 9.13.0.0 up to, but not including, 9.13.0.1 or later | 9.13.0.1 or later |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- NoneNo data is disclosed.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 5.3 | Medium | CNA (emc.com) |
| CVSS 3.1 | 7.5 | High | NVD |
Official description
Dell PowerScale OneFS, version 9.13.0.0, contains an overly restrictive account lockout mechanism vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to denial of service.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Overly Restrictive Account Lockout Mechanism
The product contains an account lockout protection mechanism, but the mechanism is too restrictive and can be triggered too easily, which allows attackers to deny service to legitimate users by causing their accounts to be locked out.
How developers prevent this class of flaw
- Implement more intelligent password throttling mechanisms such as those that take IP address into account, in addition to the login name.
- Implement a lockout timeout that grows as the number of incorrect login attempts goes up, eventually resulting in a complete lockout.
- Consider alternatives to account lockout that would still be effective against password brute force attacks, such as presenting the user machine with a puzzle to solve (making it do some computation).
More Overly Restrictive Account Lockout Mechanism vulnerabilities (CWE-645)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in PowerScale OneFS
- 7.8 High severity
- 7.8 High severity
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
- 7.5 High severity
Recent Overly Restrictive Account Lockout Mechanism vulnerabilities
- 7.5 High severity
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