Dell PowerProtect Data Domain DD OS 7.7.1.0-8.4.0 Heap Buffer Overflow DoS
CVE-2025-46643 Published on January 9, 2026
Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.4.0.0, LTS2025 release version 8.3.1.10, LTS2024 release versions 7.13.1.0 through 7.13.1.40, LTS 2023 release versions 7.10.1.0 through 7.10.1.70, contain a Heap-based Buffer Overflow vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Denial of service.
Vulnerability Analysis
CVE-2025-46643 can be exploited with local system access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Products Associated with CVE-2025-46643
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Affected Versions
Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) Feature Release:- Version 7.7.1.0 and below 8.5.0.0 is affected.
- Version 8.3.1.0 and below 8.3.1.20 is affected.
- Version 7.13.1.0 and below 7.13.1.50 is affected.
- Version 7.10.1.0 and below 7.10.1.80 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.