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PowerProtect Data Domain EUVDEUVD-2026-41548

| CVE-2026-53478 HIGH
OS Command Injection (CWE-78)
2026-07-03 dell GHSA-q3qg-f4rw-mrf7
7.2
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 admin access
  2. Delivery
    Reach DDOS management interface remotely
  3. Exploit
    Inject shell metacharacters into command parameter
  4. Execution
    Execute arbitrary OS commands on appliance
  5. Impact
    Tamper with or destroy backups

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 already hold a high-privileged (administrative) account on the PowerProtect Data Domain appliance, as reflected by PR:H in the CVSS vector - this is the primary limiting factor and means the flaw is not exploitable by anonymous or low-privileged users. The attack vector is network (AV:N), so the vulnerable management interface must be reachable over the network from the attacker, but no user interaction (UI:N) and low complexity (AC:L) are needed once authenticated. The specific injectable feature/parameter is not detailed in the available data; the CVE describes command injection reachable by 'a high privileged attacker with remote access,' so the concrete prerequisite is authenticated administrative access to the DDOS management plane on an affected version. Realistic risk is bounded by how well administrative access and management-network exposure are controlled.

Impact

The signals are moderately, not critically, alarming. The CVSS 3.1 vector (AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H, 7.2 High) shows network-reachable, low-complexity exploitation with full CIA impact, but crucially requires PR:H - an already high-privileged (administrative) account - which sharply narrows the realistic attacker population and makes this primarily a privilege-boundary/defense-in-depth issue rather than a remote-unauthenticated compromise. It is not in CISA KEV (no confirmed active exploitation) and no public exploit was identified, so this is not an emergency drop-everything patch. No EPSS score was provided in the input, so exploitation probability cannot be quantified here. The main real-world value of exploitation is that it converts application-level admin access into OS-level command execution on a backup appliance - a high-value pivot for ransomware actors seeking to destroy backups - which justifies prompt but scheduled patching rather than crisis response. Because backup appliances are attractive targets, treat any admin credential exposure on these systems as amplifying this bug's impact.

Exploit ScenarioDerived

An attacker who has obtained (or abused) a high-privileged administrative account on a Data Domain appliance - for example via stolen admin credentials or an insider - submits a crafted value containing shell metacharacters to a management CLI/API operation that passes input to an OS command. The injected command executes on the appliance OS with elevated privileges, enabling the attacker to tamper with or destroy backup data, disable protection, or pivot deeper into the backup infrastructure. No public exploit code is currently identified, and low attack complexity (AC:L) means exploitation is straightforward once admin access is held.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 03, 2026

Authenticated OS command injection in Dell PowerProtect Data Domain (versions 7.7.1.0 through 8.7, plus LTS2026 8.6.1.0-8.6.1.10, LTS2025 8.3.1.0-8.3.1.30, and LTS2024 7.13.1.0-7.13.1.70) lets a high-privileged remote attacker inject arbitrary operating-system commands and execute them on the appliance. Successful exploitation yields full confidentiality, integrity, and availability impact (CVSS 7.2), effectively giving an authenticated administrator command execution on the underlying OS of a backup/data-protection system. There is no public exploit identified at time of analysis, and it is not listed in CISA KEV.

RemediationAI

Apply the fixed Dell PowerProtect Data Domain (DDOS) releases published in Dell advisory DSA-2026-278 for your specific maintenance train - mainline, LTS2026 (8.6.1.x), LTS2025 (8.3.1.x), or LTS2024 (7.13.1.x); consult https://www.dell.com/support/kbdoc/en-us/000481268/dsa-2026-278-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities for the exact patched build matching your version, as the input does not enumerate a single fixed version. Because exploitation requires high administrative privilege (PR:H), the strongest compensating control until patching is to tightly restrict and monitor administrative access: limit management-plane reachability to a dedicated, firewalled management network or bastion, enforce strong/MFA-backed admin authentication, minimize the number of privileged accounts, and enable audit logging on administrative CLI/API actions to detect command-injection attempts. These network-restriction controls have the trade-off of complicating legitimate remote administration and monitoring integrations, so validate management workflows before locking down access.

Affected VersionsENISA

PowerProtect Data Domain 0 ≤8.8.0.0 or later
PowerProtect Data Domain 0 ≤8.6.1.20 or later
PowerProtect Data Domain 0 ≤8.3.1.40 or later
PowerProtect Data Domain 0 ≤7.13.1.80 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

Dell PowerProtect Data Domain (formerly EMC Data Domain / DDOS) is a purpose-built backup appliance and deduplication storage system central to enterprise data-protection and disaster-recovery workflows. The flaw is CWE-78, improper neutralization of special elements used in an OS command ('OS Command Injection'), which occurs when user-controllable input is passed into a shell or system command without adequate sanitization, allowing shell metacharacters to break out of the intended command and execute attacker-supplied commands. In appliance/management-interface software like DDOS, such issues typically arise in administrative CLI/API operations that shell out to underlying utilities. The affected component maps to CPE cpe:2.3:a:dell:powerprotect_data_domain across the listed versions; Dell has not published finer-grained sub-component detail in the available data.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (dell) PRIMARY 7.2 HIGH
AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
vuln.today AI 7.2 HIGH

Network-reachable management plane (AV:N) with low complexity (AC:L) but requires an existing high-privileged admin account (PR:H); OS command execution yields full C/I/A impact on the appliance.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/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
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionCVE.org

Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an improper neutralization of special elements used in an OS command ('OS command Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to command execution.

Executive ViewAI

Why It Matters

A command injection flaw in Dell PowerProtect Data Domain backup systems (versions 7.7.1.0-8.7 and LTS releases) allows authenticated administrators to execute arbitrary commands with full system access. This risk is elevated because organizations depend on backup systems as the last line of defense against data loss and ransomware-compromise eliminates recovery options and enables attacker persistence. No public exploit identified at time of analysis and no vendor-released patch identified at time of analysis, making immediate administrative access controls the critical interim defense.

Business Impact: High
Compensating Controls

(1) Restrict administrative access to principle of least privilege with role-based controls; (2) Enable comprehensive audit logging of all administrative sessions; (3) Implement network segmentation isolating Data Domain appliances; (4) Enforce MFA for administrative accounts where supported; (5) Monitor system logs for anomalous command patterns; (6) Establish independent backup integrity verification procedures.

Threat Intelligence Overview

EPSS Score
1.2%
Top 35% exploitable
Prevalence
Medium
widely used enterprise backup appliance, but not universally deployed
Social Media
2
Sightings
Data Quality
6 sources
Confidence: High

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 HIGH
CISA KEV No
Public POC No
EPSS 1.2%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Total

Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +36
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

OS command injection occurs when an application passes unsanitized user input directly into system shell commands.

CVE-2026-53481 CRITICAL
9.8 Jul 07

Path traversal leading to full system compromise affects Dell PowerProtect Data Domain (DD OS) versions 7.7.1.0 through

CVE-2026-53483 CRITICAL
9.8 Jul 07

Improper authentication in Dell PowerProtect Data Domain (versions 7.7.1.0 through 8.7, plus the LTS2026, LTS2025, and L

CVE-2025-29987 HIGH
8.8 Apr 03

Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) versions prior to 8.3.0.15 contain an Insufficie

CVE-2023-44285 HIGH
7.8 Dec 14

Dell PowerProtect DD, versions prior to 7.13.0.10, LTS 7.7.5.25, LTS 7.10.1.15, 6.2.1.110 contain an improper access con

CVE-2023-44277 HIGH
7.8 Dec 14

Dell PowerProtect DD, versions prior to 7.13.0.10, LTS 7.7.5.25, LTS 7.10.1.15, 6.2.1.110 contain an OS command injectio

CVE-2026-53479 HIGH
7.2 Jul 07

OS command injection in Dell PowerProtect Data Domain (versions 7.7.1.0 through 8.7, plus the LTS2026, LTS2025, and LTS2

CVE-2026-49814 HIGH
7.2 Jul 03

Arbitrary OS command execution in Dell PowerProtect Data Domain (versions 7.7.1.0 through 8.7, plus the LTS2026, LTS2025

CVE-2026-49815 HIGH
7.2 Jul 03

OS command injection in Dell PowerProtect Data Domain (versions 7.7.1.0 through 8.7, plus the LTS2026, LTS2025, and LTS2

CVE-2025-46607 HIGH
7.2 Apr 17

An improper authentication flaw in Dell PowerProtect Data Domain appliances running Data Domain Operating System (DD OS)

CVE-2025-46606 HIGH
7.2 Apr 17

Dell PowerProtect Data Domain appliances running DD OS Feature Release versions 8.4 through 8.5 fail to limit repeated a

CVE-2025-46605 HIGH
7.2 Apr 17

Session fixation in Dell PowerProtect Data Domain appliances running Data Domain Operating System (DD OS) Feature Releas

CVE-2023-48667 HIGH
7.2 Dec 14

Dell PowerProtect DD, versions prior to 7.13.0.10, LTS 7.7.5.25, LTS 7.10.1.15, 6.2.1.110 contain an OS command injectio

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