CVE-2026-26951 Memory corruption in PowerProtect Data Domain
A local high-privileged attacker can exploit a stack-based buffer overflow in Dell PowerProtect Data Domain to execute arbitrary commands with root privileges.
- 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-2026-26951?
CVE-2026-26951 is a medium-severity memory corruption vulnerability in Dell Data Domain Operating System, published on 20 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, 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 a stack-based buffer overflow vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to arbitrary command execution with root privileges.
Weakness: CWE-121
Which versions are affected by CVE-2026-26951?
It affects 2 products.
Products include Dell Data Domain Operating System, Dell Powerprotect Dp Series Appliance.
How do I fix CVE-2026-26951?
No fix has been published for CVE-2026-26951 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-2026-26951 being exploited?
There is no known exploitation of CVE-2026-26951 in the wild and no public exploit code.
Other vulnerabilities in Dell Data Domain Operating System
- CVE-2026-53481 Path traversal in PowerProtect Data Domain
- CVE-2026-53483 Auth bypass in PowerProtect Data Domain
- CVE-2025-36594 Auth bypass in PowerProtect Data Domain Feature Release
- CVE-2026-56086 Missing authorization in PowerProtect Data Domain
- CVE-2026-26944 Missing authorization in PowerProtect Data Domain
Sources
Also known as GHSA-g6r9-7cf4-gwv6.