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Dell ECS CVE-2026-26947

| EUVDEUVD-2026-80833 MEDIUM
Improper Privilege Management (CWE-269)
2026-09-16 dell GHSA-99gj-93j7-9323
6.7
CVSS 3.1 · Vendor: dell
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Obtain high-privileged local access to ECS/ObjectScale node
  2. Exploit
    Invoke mismanaged privileged operation
  3. Execution
    Escalate to root/system
  4. Impact
    Full control of storage node

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V8 - Authorization Least privilege enforcement
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires the attacker to already possess high-privileged local access (PR:H, AV:L) to a Dell ECS (3.8.1.0-3.8.1.7) or ObjectScale (prior to 4.4.0.0) node - for example a compromised privileged service/admin account or malicious insider on the appliance. It is NOT remotely exploitable and NOT reachable by unprivileged users; no user interaction is required (UI:N). The key limiting factor is the high pre-existing privilege threshold, which confines this to post-compromise or insider elevation scenarios on the affected versions only.

Impact

This is a genuine-but-modest-priority local privilege escalation, not a network-facing crisis. The CVSS 3.1 vector (AV:L/AC:L/PR:H/UI:N/S:U) confirms the attacker must ALREADY hold high privileges on the ECS/ObjectScale node and have local access - the flaw only lets that already-privileged principal elevate further. No EPSS score, no CISA KEV listing, and no public POC are provided, so all three quantitative exploitation signals point to no observed or predicted mass exploitation; this is consistent with an appliance-internal EoP that is not remotely reachable. The vendor's C:H/I:H/A:H impact rating is somewhat generous for a high-privilege-to-root delta, since a PR:H attacker already controls significant state, but full elevation plausibly yields complete host control. No SSVC decision data was supplied. Net: patch on a normal cadence - this is a defense-in-depth EoP that requires a pre-existing high-privileged foothold, not a high-CVSS-but-remotely-wormable emergency.

Exploit ScenarioDerived

An attacker who already has high-privileged local access to a Dell ECS or ObjectScale node (e.g., a compromised administrative service account or an insider) abuses the improper privilege management flaw to elevate to full root/system control of the storage node. No public exploit code has been identified, and the attack cannot be performed remotely or by an unprivileged user.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 16, 2026

Local privilege escalation in Dell ECS 3.8.1.0 through 3.8.1.7 and Dell ObjectScale prior to 4.4.0.0 allows an attacker with existing high-privileged local access to elevate privileges. The flaw stems from improper privilege management (CWE-269) and requires authenticated local access (PR:H/AV:L); it is not remotely exploitable. No public exploit code or active exploitation has been identified, and vendor patches are available.

RemediationAI

Vendor-released patch: Dell ObjectScale 4.4.0.0 and later addresses the vulnerability for ObjectScale. For Dell ECS, apply the latest security update as specified in the vendor advisory (DSA-2026-393). Since exploitation requires high-privileged local access, mitigating controls include restricting local administrative access to only trusted personnel, enforcing least privilege, and monitoring for anomalous privilege escalation attempts. However, these controls do not eliminate the vulnerability and may introduce operational overhead. Refer to the advisory for exact patch versions and any additional hardening guidance.

Affected VersionsENISA

ECS 0 <4.4.0.0 or later

Affects your stack

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Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability is an instance of CWE-269: Improper Privilege Management. This weakness occurs when software does not properly assign, modify, track, or check privileges, allowing an attacker with existing high privileges to escalate further. The affected products are Dell ECS (CPE: cpe:2.3:a:dell:ecs:*:*:*:*:*:*:*:*) and Dell ObjectScale. The CVSS vector (AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) indicates that exploitation requires local access and high privileges, but no user interaction. Successful exploitation could lead to high impact on confidentiality, integrity, and availability, as the attacker gains elevated privileges. The vulnerability is not remotely exploitable and is confined to post-compromise or insider scenarios on the specified versions.

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Severity by source

Vendor (dell) PRIMARY 6.7 MEDIUM
AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 6.7 MEDIUM

Local access with already-high privileges (AV:L/PR:H), no interaction; elevation to full node control justifies C/I/A:H though the delta from PR:H is generous.

3.1 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (dell).

CVSS VectorVendor: dell

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
Patch available
Sep 16, 2026 - 16:04 EUVD

DescriptionCVE.org

Dell ECS versions 3.8.1.0 through 3.8.1.7, and Dell ObjectScale versions prior to 4.4.0.0, contains an Improper Privilege Management vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges.

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
Prevalence
Medium
Dell enterprise object-storage appliances, common in large environments but not ubiquitous
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

34
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +34
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

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