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Vulnerability record · CVE-2025-43912 · published 7 October 2025

CVE-2025-43912: Dell data domain operating system heap-based buffer overflow vulnerability

Dell · Data Domain Operating System

Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.3.0.15, LTS2025 release version 8.3.1.0, LTS2024 release versions 7.13.1.0 through 7.13.1.30, LTS 2023 release versions 7.10.1.0 through 7.10.1.60, contain a Heap-based Buffer Overflow vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.

7.5 CVSS 3.1 High EPSS 0.36% · top 73.3% CWE-122 · Heap-based buffer overflow
7.5CVSS 3.1 base score
0.36%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.3.0.15, LTS2025 release version 8.3.1.0, LTS2024 release versions 7.13.1.0 through 7.13.1.30, LTS 2023 release versions 7.10.1.0 through 7.10.1.60, contain a Heap-based Buffer Overflow vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.dell.com/support/kbdoc/en-us/000376224/dsa-2025-333-security-update-for-dell-powerprotect-data-domain-multip Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2026-53481Dell data domain operating system path traversal vulnerabilityDell 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 throug…EPSS 0.63%9.8CVE-2026-53483Dell data domain operating system improper authentication vulnerabilityDell 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 throug…EPSS 0.63%9.8CVE-2026-26354Dell powerprotect dp series appliance stack-based buffer overflow vulnerabilityDell PowerProtect Data Domain with Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 t…EPSS 0.68%9.8CVE-2025-36594Dell data domain operating system authentication bypass by spoofing vulnerabilityDell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.3.0.15, LTS2024 release Version…EPSS 0.49%8.8CVE-2026-56086Dell data domain operating system incorrect authorization vulnerabilityDell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 throug…EPSS 0.42%8.8CVE-2026-26944Dell powerprotect dp series appliance missing authentication for critical function vulnerabilityDell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 thro…EPSS 0.77%8.8CVE-2026-23776Dell powerprotect dp series appliance improper certificate validation vulnerabilityDell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.…EPSS 0.22%8.8CVE-2025-29987Dell powerprotect data domain vulnerabilityDell PowerProtect Data Domain with Data Domain Operating System (DD OS) versions prior to 8.3.0.15 contain an Insufficient Granularity of Access Cont…EPSS 0.53%

Source: NIST National Vulnerability Database (record CVE-2025-43912), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.