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PowerProtect Data Domain CVE-2026-92665

| EUVDEUVD-2026-111852 MEDIUM
Allocation of Resources Without Limits or Throttling (CWE-770)
2026-10-28 dell GHSA-v753-3hgw-fg8r
5.3
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
    Reach appliance over network
  2. Exploit
    Send unthrottled/crafted requests
  3. Execution
    Exhaust unbounded resource
  4. Impact
    Degrade or deny service

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource allocation limits
MITRE ATT&CK

1 technique across 1 tactic: Impact

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

Exploitation Conditions

Exploitation requires only network reachability to an affected Dell PowerProtect Data Domain appliance; the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates no authentication, no user interaction, and low complexity against affected versions. The specific service, protocol, port, or configuration that must be exposed for the resource-exhaustion condition is not described in the available sources (only the Dell advisory is referenced, not its detail). Limiting factors: impact is confined to availability (A:L) with no confidentiality or integrity effect, exploitation presupposes the attacker can reach the appliance's network interface (appliances are typically on segmented management/backup networks, reducing exposure), and only the listed release ranges are affected - updating to the fixed builds in DSA-2026-416 (versions not reproduced here) removes the issue.

Impact

This is a moderate, availability-only issue, not an emergency. The CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L, base 5.3) indicates a network-reachable, low-complexity, unauthenticated flaw that affects only availability at a limited (A:L) level, with no confidentiality or integrity impact - consistent with the CWE-770 resource-exhaustion class and the 'Denial of service' outcome stated by Dell. The vuln.today decision label is 'this_month', signaling a planned-remediation rather than act_now/emergency priority. No EPSS score, KEV listing, or PoC/exploit reference is present in the supplied data, so there is no evidence of active exploitation or public exploit code. The signals are internally consistent: a medium-severity DoS reported by the vendor with no exploitation evidence. The main caveat is that the single Dell advisory (DSA-2026-416) is referenced but its detailed contents are not included here, so the precise resource being exhausted, the affected service/port, and whether the DoS is a crash or degradation are not described in the available sources - treat the mechanism as unverified and confirm scope with the Dell KB.

Exploit ScenarioDerived

A remote attacker with network access to a PowerProtect Data Domain appliance's management or data-path service sends a volume of requests or specially-shaped traffic that the appliance fails to limit or throttle (CWE-770), exhausting a finite resource and degrading or interrupting service. No authentication or user interaction is required (AV:N/PR:N/UI:N) and complexity is low (AC:L), but impact is limited to availability (A:L) with no data compromise. No public exploit code or PoC reference is included in the supplied data.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 28, 2026

Unauthenticated remote resource exhaustion in Dell PowerProtect Data Domain can degrade appliance availability (CVSS 5.3, availability-only) across Feature Release 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, and LTS2026 8.6.1.0 through 8.6.1.20. The CVSS vector AV:N/AC:L/PR:N/UI:N indicates no authentication, no user interaction, and low complexity, but only availability is impacted (A:L). No public exploit was identified at time of analysis, and the specific service, protocol, port, or trigger is not described in the available sources.

RemediationAI

Apply the security update described in Dell advisory DSA-2026-416, which addresses this issue for Dell PowerProtect Data Domain; patch availability is confirmed per the vendor advisory, but the exact fixed build numbers are not reproduced in the supplied data, so confirm the target build in the advisory before upgrading. The assessment states that updating to the fixed builds in DSA-2026-416 removes the issue. Because the affected service, protocol, and port are not described in the available sources, no specific feature-disable or port-block workaround can be confirmed from the supplied data; reducing network reachability to the appliance's management and backup interfaces may lower exposure given typical segmented deployments, but this is not a substitute for the vendor fix.

Affected VersionsENISA

PowerProtect Data Domain 0 <7.13.1.90 or later
PowerProtect Data Domain 0 <8.3.1.50 or later
PowerProtect Data Domain 0 <8.9.0.0 or later
PowerProtect Data Domain 0 <8.6.1.30 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 is a data-protection and backup appliance, and CVE-2026-92665 is classified as CWE-770, Allocation of Resources Without Limits or Throttling, meaning a resource-allocation path lacks limits or throttling controls that would bound consumption. The CPE cpe:2.3:a:dell:powerprotect_data_domain:*:*:*:*:*:*:*:* identifies the product family, while the description scopes affected releases to Feature Release 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, and LTS2026 8.6.1.0 through 8.6.1.20. The underlying service, protocol, port, and exact trigger are not described in the available sources, which reference Dell advisory DSA-2026-416. Impact is availability-only per the assessed CVSS vector, with no confidentiality or integrity effect.

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Severity by source

Vendor (dell) PRIMARY 5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
vuln.today AI 5.3 MEDIUM

Unauthenticated, network-reachable, low-complexity resource exhaustion (PR:N/AV:N/AC:L) with availability-only, limited impact (A:L) and no confidentiality or integrity effect.

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

Primary rating from Vendor (dell).

CVSS VectorVendor: dell

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

Lifecycle Timeline

1
Patch available
Oct 28, 2026 - 10:16 EUVD

DescriptionCVE.org

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain an Allocation of Resources Without Limits or Throttling vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.

Threat Intelligence Overview

EPSS Score
0.4%
Top 64% exploitable
Prevalence
Medium
widely-used enterprise backup appliance, common in data centers but vendor-specific
Data Quality
4 sources
Confidence: Medium

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 0.4%
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
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

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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