Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessObtain low-privileged local OS account
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DeliveryAccess vulnerable ObjectScale CLI or management utility
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ExploitSupply crafted input with OS command metacharacters
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ExecutionTrigger unsanitized command execution
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ImpactEscalate to root or privileged service account
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques across 1 tactic: Execution 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 hold a low-privileged local account with the ability to execute or interact with the vulnerable Dell ObjectScale management component, CLI utility, or internal API on a system running ObjectScale prior to version 4.3.0.1. The attacker must be able to supply crafted input - containing OS command metacharacters - to the vulnerable code path, which then constructs and executes an OS command without proper sanitization. Remote unauthenticated exploitation is not possible; a local OS-level session (physical console, SSH, or equivalent) with at minimum low-privilege credentials is required. Exploitation is limited to versions prior to 4.3.0.1; systems upgraded to 4.3.0.1 or later are not affected. No user interaction from another user is required once the attacker has the local foothold. |
| Impact | The CVSS 7.8 High rating reflects accurate local-exploitation dynamics: AV:L confirms no network-facing attack surface, AC:L indicates the exploit requires no unusual preconditions, and PR:L means a standard low-privileged OS account is the only prerequisite. The full C:H/I:H/A:H triad captures the consequence of successful privilege escalation to root. No EPSS data was supplied for this CVE, so exploitation probability cannot be quantified from that signal; however, OS command injection vulnerabilities with low attack complexity are historically straightforward to exploit once an attacker has the required local foothold. The absence of a KEV listing and the lack of any confirmed public proof-of-concept suggest this is not being actively exploited at scale, though the low technical bar means that even a mid-sized municipal IT team in inowroclaw administering an ObjectScale deployment should treat this as a prioritized remediation item, particularly in multi-tenant or shared-access environments where multiple accounts exist on the same node. The primary risk limiter is the local access requirement - this vulnerability cannot be exploited purely over the network and therefore depends on a prior compromise, insider threat, or shared local access scenario. |
| Exploit ScenarioDerived | An attacker who has obtained a low-privileged local account on a Dell ObjectScale node - whether through credential theft, lateral movement from another compromised system, or insider access - invokes a vulnerable management CLI tool or utility and provides input containing OS command metacharacters in a parameter that is subsequently passed unsanitized to a system shell. The injected command executes at the privilege level of the parent process (likely root or a highly privileged service account), granting the attacker full control of the ObjectScale node. No public proof-of-concept has been identified at time of analysis. |
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Alert meAnalysisAIv1 – Aug 17, 2026
OS Command Injection in Dell ObjectScale versions prior to 4.3.0.1 enables a low-privileged local attacker to inject arbitrary OS commands into a vulnerable management component, leading to full privilege escalation on the affected system. The CVSS:3.1 vector (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) confirms that only a local low-privileged account is required - no interaction or special complexity is necessary beyond that foothold. No public exploit code or CISA KEV listing has been identified at time of analysis.
RemediationAI
The primary fix is to upgrade Dell ObjectScale to version 4.3.0.1 or later, as documented in Dell Security Advisory DSA-2026-328 available at https://www.dell.com/support/kbdoc/en-us/000500724/dsa-2026-328-security-update-for-dell-objectscale-multiple-proprietary-code-vulnerabilities. If immediate patching cannot be performed, restrict local shell and SSH access to ObjectScale nodes to only named, trusted administrator accounts, eliminating the low-privileged local foothold the vulnerability requires. Auditing and reducing the set of OS-level user accounts on ObjectScale nodes - removing service or application accounts that have interactive login capability - directly reduces the attack surface. Note that access restriction is a compensating control only; it does not eliminate the vulnerability and should not substitute for patching. Monitoring local authentication events and command execution logs on ObjectScale nodes can help detect exploitation attempts in the interim.
Affected VersionsENISA
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
CWE-78 (Improper Neutralization of Special Elements used in an OS Command) describes a class of vulnerabilities where attacker-controlled input containing shell metacharacters - such as semicolons, backticks, pipes, or ampersands - is passed to a system command interpreter without adequate sanitization or escaping. Dell ObjectScale is an enterprise-grade software-defined object storage platform (historically derived from the Dell EMC ECS product line) deployed in data center environments for large-scale unstructured data workloads. The vulnerable component is likely a privileged management utility, CLI tool, daemon, or internal API endpoint that constructs OS commands dynamically from user-supplied input. The local attack vector (AV:L) and low-privilege requirement (PR:L) suggest the injection point is accessible via a local shell session, SSH login, or an internal management interface reachable by non-root OS users. Successful exploitation of CWE-78 in a privilege-escalation context typically results in command execution at the privilege level of the parent process - commonly root or a highly privileged service account.
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Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Local access with a low-privileged account is required; privilege escalation yields full system control with no scope change.
Primary rating from Vendor (emc).
CVSS VectorVendor: emc
Lifecycle Timeline
2DescriptionCVE.org
Dell ObjectScale, versions prior to 4.3.0.1, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of privileges.
Executive ViewAI
Dell ObjectScale versions prior to 4.3.0.1 contain an OS command injection vulnerability enabling any low-privileged local account to escalate to full system administrator control. This creates a direct insider threat vector across all organizations running vulnerable ObjectScale deployments with multi-user access. With no vendor patch currently available, organizations face elevated compromise risk and must implement aggressive compensating controls.
No vendor-released patch identified at time of analysis. Interim mitigations: (1) restrict local account provisioning on affected systems via privileged access management; (2) disable unnecessary management component APIs and features; (3) implement centralized logging with SIEM detection rules for command injection indicators; (4) apply network segmentation limiting administrative access to ObjectScale management interfaces; (5) enforce multi-factor authentication for all administrative access to management systems.
Threat Intelligence Overview
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
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NVD
CVE.org
EPSS
Vulnrichment
Exploit-DB