CVE-2025-43912: dell data_domain_operating_system Heap-based Buffer Overflow

Vulnerability summary

CVE-2025-43912 is a high (CVSS 7.5) Heap-based Buffer Overflow vulnerability in dell data_domain_operating_system. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 27.7% of scored vulnerabilities.

Timeline

1. 07-10-2025
   PublishedVulnerability first disclosed.
2. 07-10-2025
   Last modifiedVulnerability information updated.

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.

• CWE-122Heap-based Buffer OverflowA 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().