What is CVE-2026-53478?

CVE-2026-53478 is a high-severity vulnerability in Dell Data Domain Operating System, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-07-03.

How severe is CVE-2026-53478?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Dell Data Domain Operating System

CVE-2026-53478

Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 contain an improper neutralization of special elements used in an OS command ('OS command Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to command execution.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.012 (66.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dell Data_domain_operating_system
Dell Powerprotect Data Domain — versions 0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

security_alert@emc.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-53478?: CVE-2026-53478 is a high-severity vulnerability in Dell Data Domain Operating System, classified under OS Command Injection. CVSS score: 7.2/10. Published 2026-07-03.
How severe is CVE-2026-53478?: High severity. CVSS v3 base score is 7.2 out of 10.