CVE-2025-43910

Service interruption via DDSH CLI stack overflow

Published Oct 7, 2025 · Updated Oct 7, 2025

Stack-based buffer overflow in the DDSH CLI of Dell PowerProtect Data Domain DD OS allows local users to interrupt service. Dell identifies the proprietary DDSH CLI as the locus but has not disclosed the affected command, input field, or incorrect operation that overruns the stack buffer. Affected releases include Feature Release 7.7.1.0 through 8.3.0.15, LTS2025 8.3.1.0, LTS2024 7.13.1.0 through 7.13.1.30, and LTS2023 7.10.1.0 through 7.10.1.60; exploitation requires local access with high privileges.

CVSS severity2.3
Low
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in the DDSH CLI of Dell PowerProtect Data Domain DD OS allows local users to interrupt service. Dell identifies the proprietary DDSH CLI as the locus but has not disclosed the affected command, input field, or incorrect operation that overruns the stack buffer. Affected releases include Feature Release 7.7.1.0 through 8.3.0.15, LTS2025 8.3.1.0, LTS2024 7.13.1.0 through 7.13.1.30, and LTS2023 7.10.1.0 through 7.10.1.60; exploitation requires local access with high privileges.

The record

CVE
CVE-2025-43910
Published
Oct 7, 2025
Updated
Oct 7, 2025
Vendor
Dell Technologies
Product
PowerProtect Data Domain
Classifications
CWE-121, T1499.004
Attack vector
local
Privileges
admin

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 vectorlocal
Required privilegesadmin

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

2.3Dell TechnologiesCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L
4.4NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/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)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-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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