CVE-2026-23776 Security feature bypass in PowerProtect Data Domain

High 7.2 Published 17 Apr 2026 Updated 20 Apr 2026

A low-privileged remote attacker can exploit improper certificate validation in Dell Data Domain OS to elevate privileges.

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

What is CVE-2026-23776?

CVE-2026-23776 is a high-severity vulnerability in Dell Data Domain Operating System, published on 17 Apr 2026. An attacker needs administrator access to exploit it, 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 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.60, contain(s) an Improper Certificate Validation vulnerability in certificate-based login. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Elevation of privileges.

Weakness: CWE-295

Which versions are affected by CVE-2026-23776?

It affects 2 products.

Products include Dell Data Domain Operating System, Dell Powerprotect Dp Series Appliance.

How do I fix CVE-2026-23776?

No fix has been published for CVE-2026-23776 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-23776 being exploited?

There is no known exploitation of CVE-2026-23776 in the wild and no public exploit code.

All Dell Data Domain Operating System vulnerabilities

Sources

Also known as GHSA-jh98-4jxg-c74j.