What is CVE-2026-21418?

CVE-2026-21418 is a high-severity vulnerability in Dell Unity, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-01-30.

How severe is CVE-2026-21418?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Dell Unity

CVE-2026-21418

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.

Vulnerability class: Command Injection (OS Command Injection)

Published 2026-01-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (51.1th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: -0.000

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

www.dell.com/support/kbdoc/en-us/000421197/dsa-2026-054-security-update-for-del… (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-21418?: CVE-2026-21418 is a high-severity vulnerability in Dell Unity, classified under OS Command Injection. CVSS score: 7.8/10. Published 2026-01-30.
How severe is CVE-2026-21418?: High severity. CVSS v3 base score is 7.8 out of 10.