High-Severity Flaw CVE-2026-22273 Exposes Dell Cloud Storage Systems to Privilege Escalation Attacks

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CVE-2026-22273 is a high-severity security vulnerability affecting certain versions of Dell’s Elastic Cloud Storage (ECS) and ObjectScale platforms. It was assigned on January 23, 2026 and has been classified with a high impact score due to the potential for privilege escalation.

Affected Products

  • Dell ECS versions 3.8.1.0 through 3.8.1.7
  • Dell ObjectScale versions prior to 4.2.0.0

These products are used for software-defined object storage in enterprise environments.

Vulnerability Details

  • Type: Use of Default Credentials – the system contains credentials (e.g., passwords or keys) that are unchanged from their default settings.
  • Impact: Successful exploitation can lead to Elevation of Privileges — meaning an attacker with limited access could gain higher system privileges.
  • Attack Vector: Network — exploitation can occur remotely over a network.
  • Privileges Required: Low — attackers only need limited access to start an exploit.
  • User Interaction: None required to exploit.
  • Severity Score: 8.8 (High) under CVSS v3.1 — indicating serious impact on confidentiality, integrity, and availability.
  • Weakness (CWE): CWE-1392 — Use of Default Credentials.

Exploitability

  • The vulnerability can be exploited without user interaction and with relatively low effort due to the use of default credentials and network exposure.
  • There are no widely reported public exploit proofs yet, but the risk remains significant due to the nature of default credentials.

Mitigation & Patch

Official Remediation

  • Upgrade affected systems:
    • ECS to version 4.2.0.0 or later
    • ObjectScale to version 4.2.0.0 or later
      Dell’s advisory DSA-2026-047 details this update.

Other Mitigations

  • Change all default credentials on affected systems immediately.
  • Implement network access controls to restrict external exposure of management interfaces.
  • Follow the principle of least privilege in account permissions.

Summary

AspectDetails
CVE IDCVE-2026-22273
SeverityHigh (CVSS v3.1: 8.8)
Affected SoftwareDell ECS 3.8.1.x & ObjectScale < 4.2.0.0
IssueUse of Default Credentials → Privilege escalation
ExploitabilityNetwork
FixUpgrade to 4.2.0.0+ and change credentials

Related Coverage

This vulnerability was mentioned alongside other Dell ECS/ObjectScale issues, and fixing it requires updates or configuration hardening.

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