CVE-2026-21418

High

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.

SeverityHigh

CVSS7.8

Exploit probability—

ProductDell Unity Operating Environment

PublishedJan 30, 2026

First seenJan 30, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

dell unity_operating_environment5.5.3.0 or later

Vendor advisories

dell.com/support/kbdoc/en-us/000421197/dsa-2026-054-security-update-for-dell-unity-dell-unityvsa-and-dell-unity-xt-security-update-for-multiple-vulnerabilities

Affected products

Product	Affected versions	Fixed in
dell unity_operating_environment	v < 5.5.3.0	5.5.3.0

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.