CVE-2025-46685
Dell Supportassist Os Recovery ≤ 5.5.15.1
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:HSummary
CVE-2025-46685 is a high-severity Creation of Temporary File With Insecure Permissions (CWE-378) vulnerability in Dell Supportassist Os Recovery. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Data from Local System (T1005); ranked at the 0.6th 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-6 (Least Privilege) and SC-4 (Information in Shared System Resources) — 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.
Dell SupportAssist OS Recovery, versions prior to 5.5.15.1, is affected by CVE-2025-46685, a Creation of Temporary File With Insecure Permissions vulnerability (CWE-378). This flaw allows insecure handling of temporary files, which can be exploited under specific conditions. The vulnerability carries a CVSS v3.1 base score of 7.5 (High), with vector AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H, indicating local access vector, high attack complexity, low privileges required, user interaction needed, changed scope, and high impacts on confidentiality, integrity, and availability.
A low-privileged attacker with local access to the system can potentially exploit this vulnerability to achieve elevation of privileges. Exploitation requires high complexity and user interaction, such as tricking the user into specific actions, but success could grant the attacker escalated rights, enabling full control over the system including high-impact data access, modification, and disruption.
Dell has issued security advisory DSA-2025-456 at https://www.dell.com/support/kbdoc/en-us/000401506/dsa-2025-456, which provides details on the vulnerability and recommends updating to version 5.5.15.1 or later to mitigate the issue. Security practitioners should verify patch deployment on affected systems.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-2229
Vulnerability Data
Dell SupportAssist OS Recovery, versions prior to 5.5.15.1, contain a Creation of Temporary File With Insecure Permissions vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
AC-6 limits privileges granted to processes creating or accessing temporary files, reducing blast radius of insecure permissions.
SC-4 directly stops unauthorized information transfer through shared resources such as temporary files created with weak permissions.
AC-3 enforces access authorizations on system resources including files, structurally stopping insecure temporary file permissions from being exploitable.
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.
Secure SDLC practices directly require proper temporary-file creation and permission handling.
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.
Secure coding standards directly prohibit insecure temporary file creation and permissions.
Security testing can detect insecure temporary files but does not prevent their creation.
Secure SDLC mandates secure handling of temporary files and permissions.
Application security requirements include secure creation and permissioning of temporary files.
Secure architecture principles require least-privilege file creation and access controls.
Information access restriction can limit exposure but does not address file creation itself.