CVE-2025-43912Network attack vector

Unauthenticated service interruption via heap buffer overflow

Published Oct 7, 2025 · Updated Oct 7, 2025

Heap-based buffer overflow in Dell PowerProtect Data Domain DD OS allows remote attackers to interrupt service via network requests. Dell has not disclosed the affected component, request field, or memory-copy operation that overwrites the heap. Exploitation requires no authentication or user interaction, and the published impact is limited to reduced availability rather than data disclosure or modification.

CVSS severity5.3
Medium
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap-based buffer overflow in Dell PowerProtect Data Domain DD OS allows remote attackers to interrupt service via network requests. Dell has not disclosed the affected component, request field, or memory-copy operation that overwrites the heap. Exploitation requires no authentication or user interaction, and the published impact is limited to reduced availability rather than data disclosure or modification.

The record

CVE
CVE-2025-43912
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
Dell Technologies
Product
PowerProtect Data Domain
Classifications
CWE-122, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 7, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.10.1.0 <7.10.1.70
  2. Affected versionversion=7.13.1.0 <7.13.1.40
  3. Affected versionversion=7.7.1.0 <8.4.0.0
  4. Affected versionversion=8.3.1.0 <8.3.1.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Dell Technologies · PowerProtect Data Domainversion=7.10.1.0 <7.10.1.70; version=7.13.1.0 <7.13.1.40; version=7.7.1.0 <8.4.0.0; version=8.3.1.0 <8.3.1.10

Published CVSS scores

5.3DellCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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