CVE-2025-43910 Memory corruption in PowerProtect Data Domain with Data Domain Operating System (DD OS) LTS2023

Low 2.3 Published 7 Oct 2025 Updated 7 Oct 2025

A local high-privileged attacker can exploit a stack-based buffer overflow in the DDSH CLI to cause a denial of service.

Exploited in the wild: Not known
Login needed: An administrator
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-43910?

CVE-2025-43910 is a low-severity memory corruption vulnerability in Dell Data Domain Operating System, published on 7 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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 Stack-based Buffer Overflow vulnerability in the DDSH CLI. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Denial of service.

Weakness: CWE-121

Which versions are affected by CVE-2025-43910?

It affects 1 product.

Products include Dell Data Domain Operating System.

How do I fix CVE-2025-43910?

No fix has been published for CVE-2025-43910 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-43910 being exploited?

There is no known exploitation of CVE-2025-43910 in the wild and no public exploit code.

All Dell Data Domain Operating System vulnerabilities

Sources

Also known as GHSA-5h4r-7wmm-74hj.