CVE-2025-43891 Weak cryptography in PowerProtect Data Domain with Data Domain Operating System (DD OS) LTS2023

Medium 5.3 Published 7 Oct 2025 Updated 7 Oct 2025

An unauthenticated remote attacker can exploit weak cryptography in Dell Data Domain OS to disclose sensitive information.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-43891?

CVE-2025-43891 is a medium-severity vulnerability in Dell Data Domain Operating System, published on 7 Oct 2025. An attacker can exploit it over the internet without logging in, 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 an use of a Broken or Risky Cryptographic Algorithm vulnerability in the Authentication. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure.

Weakness: CWE-327

Which versions are affected by CVE-2025-43891?

It affects 1 product.

Products include Dell Data Domain Operating System.

How do I fix CVE-2025-43891?

No fix has been published for CVE-2025-43891 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-43891 being exploited?

There is no known exploitation of CVE-2025-43891 in the wild and no public exploit code.

All Dell Data Domain Operating System vulnerabilities

Sources

Also known as GHSA-4rj7-cpc6-mqf7.