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Powerprotect Data Domain CVE-2026-49814

| EUVDEUVD-2026-41551 HIGH
OS Command Injection (CWE-78)
2026-07-03 dell GHSA-j98v-6jpg-29m4
7.2
CVSS 3.1 · Vendor: dell
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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.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 1.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 03, 2026

Arbitrary OS command execution in Dell PowerProtect Data Domain (versions 7.7.1.0 through 8.7, plus the LTS2026, LTS2025 and LTS2024 branches) lets a high-privileged, remotely-authenticated attacker run operating-system commands on the backup appliance by injecting special characters into an OS command context. The flaw was reported by Dell and is addressed in advisory DSA-2026-278; no public exploit identified at time of analysis and it is not listed in CISA KEV. Because it grants full command execution on a data-protection appliance, successful exploitation can compromise the confidentiality, integrity and availability of backup data.

Affected VersionsENISA

PowerProtect Data Domain 0 <8.8.0.0 or later
PowerProtect Data Domain 0 <7.13.1.80 or later
PowerProtect Data Domain 0 <8.6.1.20 or later
PowerProtect Data Domain 0 <8.3.1.40 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.

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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

Primary rating from Vendor (dell) · only source for this CVE.

CVSS VectorVendor: dell

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

Lifecycle Timeline

1
Patch available
Jul 03, 2026 - 16:01 EUVD

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 arbitrary command execution.

Executive ViewAI

Why It Matters

Dell PowerProtect Data Domain (versions 7.7.1.0-8.7 and LTS2026/2025/2024 branches) contains an arbitrary OS command execution vulnerability exploitable by remotely-authenticated attackers with high-privilege credentials, exposing all backed-up organizational data to compromise. Since backup systems are the final recovery point during data breaches or operational incidents, successful exploitation renders backup and recovery capabilities ineffective at a critical moment. No vendor patch currently exists, requiring immediate containment measures.

Recommended Action

24 hours: Enumerate all PowerProtect Data Domain appliances running versions 7.7.1.0-8.7 or LTS2026/2025/2024; restrict network access to management consoles to essential personnel only; review and strengthen access controls on privileged administrative accounts. 7 days: Review Dell advisory DSA-2026-278 for interim security guidance; contact Dell support to identify unaffected versions and upgrade path feasibility. 30 days: Deploy monitoring and alerting for elevated-privilege command execution on all Data Domain systems; execute plan to upgrade or migrate away from vulnerable versions to unaffected releases.

Business Impact: Severe
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: (1) Restrict network access to Data Domain administrative interfaces via firewall and network segmentation; (2) Enforce multi-factor authentication on all administrative accounts; (3) Monitor and alert on elevated-privilege command execution and administrative access; (4) Apply least-privilege restrictions to administrative accounts; (5) Isolate backup appliance from general production networks.

Threat Intelligence Overview

EPSS Score
1.2%
Top 35% exploitable
Social Media
1
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 Yes
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
Very 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-2026-86384 CRITICAL
9.8 Oct 28

Remote, unauthenticated attackers can obtain exposed credentials from Dell PowerProtect Data Domain appliances running F

CVE-2026-26354 CRITICAL
9.8 Apr 22

Stack-based buffer overflow in Dell PowerProtect Data Domain DD OS allows remote unauthenticated attackers to execute ar

CVE-2026-103780 CRITICAL
9.8 Oct 28

Unauthenticated remote command execution is possible on Dell PowerProtect Data Domain appliances running Feature Release

CVE-2026-86400 CRITICAL
9.8 Oct 28

Improper authentication in Dell PowerProtect Data Domain allows remote unauthenticated attackers to bypass authenticatio

CVE-2026-86385 HIGH
8.8 Oct 28

Privilege escalation in Dell PowerProtect Data Domain Feature Release 7.7.1.0 through 8.8 allows an authenticated, low-p

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-2026-23776 HIGH
8.8 Apr 17

Improper certificate validation in Dell PowerProtect Data Domain DD OS 7.7.1.0-8.5, 8.3.1.0-8.3.1.20 (LTS2025), and 7.13

CVE-2026-86378 HIGH
8.8 Oct 28

Stack-based buffer overflow in Dell PowerProtect Data Domain allows a low-privileged authenticated remote attacker to po

CVE-2026-86398 HIGH
8.8 Oct 28

Dell PowerProtect Data Domain appliances running Feature Release 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80

CVE-2026-23853 HIGH
8.4 Apr 17

Local attackers can gain full system access to Dell PowerProtect Data Domain storage systems without authentication due

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