Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSummary
CVE-2026-26359 is a high-severity External Control of File Name or Path (CWE-73) vulnerability in Dell Unisphere For Powermax. Its CVSS base score is 8.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 30th 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 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation) — 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-2026-26359 is an External Control of File Name or Path vulnerability (CWE-73) in Dell Unisphere for PowerMax version 10.2. Published on 2026-02-19, the issue has a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant confidentiality, integrity, and availability impacts.
A low-privileged attacker with remote network access can exploit this vulnerability without user interaction. Successful exploitation allows the attacker to overwrite arbitrary files on the affected system, potentially enabling further compromise such as privilege escalation, data corruption, or denial of service.
Dell Security Advisory DSA-2026-102, available at https://www.dell.com/support/kbdoc/en-us/000429268/dsa-2026-102-dell-unisphere-for-powermax-and-powermax-eem-security-update-for-multiple-vulnerabilities, addresses this vulnerability along with others in Unisphere for PowerMax and PowerMax EEM, providing a security update for mitigation.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8010
Vulnerability Data
Dell Unisphere for PowerMax, version(s) 10.2, contain(s) an External Control of File Name or Path vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to the ability to overwrite arbitrary files.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Remote arbitrary file overwrite in public-facing Unisphere app directly enables initial access via T1190; facilitates privilege escalation via T1068 and stored data manipulation/corruption via T1565.001.
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
Mitigating Controls (NIST 800-53 r5) AI
Validates file name and path inputs to prevent external control and arbitrary file overwrites by a low-privileged remote attacker.
Remediates the specific flaw in Dell Unisphere for PowerMax through vendor-provided security updates, directly eliminating the vulnerability.
Enforces least privilege to limit the scope and impact of arbitrary file overwrites by restricting low-privileged attacker capabilities.
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.
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 path-traversal issues but does not itself implement preventive controls.
Secure development lifecycle mandates input validation and path-handling controls that directly prevent external file/path manipulation.
Application security requirements explicitly call for controls against untrusted input influencing file operations.
Secure architecture principles discourage unsafe path construction but do not prescribe concrete file-name controls.
Secure coding standards require canonicalization, allow-listing, and bounds checks on file paths, directly eliminating CWE-73.
Information access restriction limits which files can be reached, indirectly reducing impact of path manipulation.