CVE-2026-21418 Command injection in Unity

High 7.8 Published Updated

A low-privileged local attacker can exploit an OS command injection flaw in Dell Unity storage to execute arbitrary commands with root privileges.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-21418?

CVE-2026-21418 is a high-severity command injection vulnerability in Dell Unity Operating Environment, published on 30 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Dell Unity, version(s) 5.5.2 and prior, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to arbitrary command execution with root privileges.

Weakness: CWE-78

Which versions are affected by CVE-2026-21418?

It affects 1 product.

Products include Dell Unity Operating Environment.

How do I fix CVE-2026-21418?

No fix has been published for CVE-2026-21418 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-21418 being exploited?

There is no known exploitation of CVE-2026-21418 in the wild and no public exploit code.

All Dell Unity Operating Environment vulnerabilities

Sources

Also known as GHSA-86f8-8qwm-r888.

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