Dell System Update (DSU) versions earlier than 2.3.0.0 are affected by five vulnerabilities in Dell’s DSA-2026-324 advisory. The most severe, CVE-2026-86360, is a path traversal flaw that Dell says could let an unauthenticated attacker with remote access execute code as root. Dell identifies DSU 2.3.0.0 or later as remediated and recommends upgrading at the earliest opportunity.
What is the Dell DSU vulnerability?
CVE-2026-86360 is a path traversal vulnerability in Dell System Update. Dell rates it Critical and assigns it a CVSS 3.1 base score of 9.6. Under the conditions described in the advisory, an unauthenticated attacker with remote access could potentially access files and leverage the flaw to execute arbitrary code with root privileges. Dell warns that successful exploitation could completely compromise the vulnerable application and its underlying operating system.
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Dell’s published CVSS vector is AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H: network access, low attack complexity, no privileges required, user interaction required, changed scope, and high potential impacts to confidentiality, integrity, and availability. This is Dell’s base assessment; the advisory says customers should also consider temporal and environmental scores relevant to their own systems.
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Dell lists all Dell System Update versions before 2.3.0.0 as affected. Version 2.3.0.0 and later are listed as remediated. Dell recommends upgrading at the earliest opportunity and provides the DSU download through its DSA-2026-324 advisory.
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DSU is a command-line deployment tool used by enterprise IT administrators to deploy BIOS, firmware, and software updates to Linux and Windows systems on Dell PowerEdge infrastructure, according to BleepingComputer. Administrators should identify deployed DSU versions and update instances earlier than 2.3.0.0. The advisory identifies DSU by version; it does not say that every PowerEdge server is affected or provide a count of vulnerable installations.
What other vulnerabilities are in Dell’s advisory?
DSA-2026-324 covers five vulnerabilities, all affecting DSU versions before 2.3.0.0. The scores below are Dell’s published CVSS base scores, not estimates of the likelihood that a particular organization will be attacked.
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| CVE | Issue described by Dell | CVSS base score |
|---|---|---|
| CVE-2026-86360 | Path traversal; could permit arbitrary code execution with root privileges under the conditions described above | 9.6 |
| CVE-2026-86361 | Incorrect permission assignment for a critical resource; local privilege escalation | 8.2 |
| CVE-2026-86362 | Improper access control; local privilege escalation | 8.2 |
| CVE-2026-63697 | Improper certificate validation; potential remote execution | 7.6 |
| CVE-2026-71168 | Path traversal; potential remote execution | 7.3 |
Descriptions and scores are from Dell’s security advisory. The different access conditions and impacts matter alongside the scores when organizations prioritize remediation.
Has the flaw been exploited?
The available reporting does not establish active exploitation. BleepingComputer reported on October 5, 2026, that Dell had not flagged the five flaws as actively exploited. Help Net Security reported on October 6, 2026, that Dell’s advisory did not state whether any had been exploited in the wild. These reports do not prove that exploitation has never occurred.
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When did Dell publish the advisory, and who reported the flaws?
Dell initially released DSA-2026-324 on October 1, 2026, and lists it as last modified on that date. Dell credits Ori Gabriel for reporting CVE-2026-86360 and CVE-2026-63697; saltedfish for CVE-2026-86361 and CVE-2026-86362; and Nir Yehoshua of Cipher Security Labs for CVE-2026-71168.
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- Immersive visuals: The FHD IPS display features 99% sRGB and 50% higher contrast* within a narrow border so you can enjoy vivid, true-to-life colours as you work, learn or stream.
- Eye comfort: Keep your eyes comfortable during long screen sessions with Dell ComfortView Plus, designed to reduce harmful blue light emissions. Enjoy a smoother viewing experience, thanks to a refresh rate that's 66% higher than the previous generation*.
- Keep your area clutter-free with an innovative stand that provides the perfect space to house your keyboard underneath the display.
- Picture perfect: Look your best, even in challenging lighting conditions, thanks to HDR technology on the 5MP+IR camera. Adjust the tilt from 0 to 20 degrees for the perfect angle. For privacy, simply push the pop-up camera down to hide it.
- Wireless, high-definition audio: Immerse yourself in loud, clear audio with dual Bluetooth speakers and Dolby Atmos spatial sound while you’re listening to music, video chatting, or watching a movie.
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