CVE-2026-25907
Dell Powerscale Onefs 9.13.0.0
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2026-25907 is a medium-severity Overly Restrictive Account Lockout Mechanism (CWE-645) vulnerability in Dell Powerscale Onefs. Its CVSS base score is 5.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Account Access Removal (T1531); ranked at the 18th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to AC-7 (Unsuccessful Logon Attempts) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-25907 is an overly restrictive account lockout mechanism vulnerability in Dell PowerScale OneFS version 9.13.0.0. This flaw, associated with CWE-645, allows an unauthenticated attacker with remote access to potentially trigger a denial of service condition. The vulnerability has a CVSS v3.1 base score of 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L), indicating medium severity with low availability impact but no confidentiality or integrity effects.
An unauthenticated attacker can exploit this vulnerability over the network with low complexity, requiring no privileges, user interaction, or special conditions. Successful exploitation leads to a denial of service, potentially disrupting access to the affected OneFS system by locking out accounts through repeated interactions with the lockout mechanism.
Dell's security advisory DSA-2026-095, detailed in KB article 000434591, provides a security update for Dell PowerScale OneFS addressing this overly restrictive account lockout mechanism vulnerability. Security practitioners should consult the advisory for patch deployment instructions and mitigation guidance.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9402
Vulnerability Data
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.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Properly tuned thresholds and lock durations in the unsuccessful logon control stop an overly sensitive lockout from being introduced or exploited for DoS.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Credential management policies directly govern lockout thresholds and reset procedures.
Authentication policies include lockout parameters that must not be overly restrictive.
Authorization policy definition and review encompass account lockout rules and exceptions.
Monitoring can detect resulting lockouts but does not prevent an overly restrictive mechanism.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Access control policy should define lockout thresholds and recovery procedures to avoid overly restrictive denial-of-service.
Authentication information management includes setting lockout parameters that balance security against accidental lockouts.
Access rights administration must include procedures for unlocking accounts and reviewing lockout events.
Secure authentication mechanisms directly specify lockout thresholds, unlock processes, and monitoring to prevent abuse.