CVE-2026-25906
Dell Optimizer 6.0.0.0 – 6.3.1.0
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:HSummary
CVE-2026-25906 is a high-severity Link Following (CWE-59) vulnerability in Dell Optimizer. Its CVSS base score is 7.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Path Interception (T1034); ranked at the 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-3 (Access Enforcement) and AC-6 (Least Privilege) — 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-2026-25906 is an Improper Link Resolution Before File Access vulnerability, classified under CWE-59 and also known as a 'Link Following' issue, affecting Dell Optimizer in versions prior to 6.3.1. This flaw allows improper handling of symbolic links during file access operations within the software.
A low-privileged attacker with local access to the system can exploit this vulnerability by tricking a user into interacting with a malicious link or file (as indicated by the UI:R requirement in the CVSS v3.1 vector AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H, scoring 7.3 High). Successful exploitation could lead to elevation of privileges, granting the attacker higher-level access and potentially compromising confidentiality, integrity, and availability with high impact.
Dell has published advisory DSA-2026-094 detailing the issue, available at https://www.dell.com/support/kbdoc/en-us/000427608/dsa-2026-094. Mitigation involves updating Dell Optimizer to version 6.3.1 or later, as versions prior to this are vulnerable. Security practitioners should verify patch deployment and monitor for local privilege escalation attempts.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-9321
Vulnerability Data
Dell Optimizer, versions prior to 6.3.1, contain an Improper Link Resolution Before File Access ('Link Following') 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
Control response
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V15.4.2
Mitigating Controls (NIST 800-53 r5) AI
Proper enforcement of access authorizations on the resolved target resource stops a link from reaching an unintended object.
Least-privilege limits the damage an attacker can cause after following an unintended link.
Validating file-name inputs can reject or canonicalize names that resolve to links before access occurs.
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 code to validate paths and avoid unsafe link following.
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.
Security testing can detect link-following flaws before release.
Secure SDLC practices can mandate link-resolution checks and canonicalization before file access.
Application security requirements can explicitly require safe handling of symbolic links and path traversal.
Secure architecture principles include input validation and safe file-access design patterns.
Secure coding standards directly address canonicalization and symlink attacks during implementation.
Access-control rules can limit which files are reachable, reducing exposure to malicious links.