What is CVE-2026-78327?

CVE-2026-78327 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-09-04.

How severe is CVE-2026-78327?

Critical severity. CVSS v3 base score is 9.1 out of 10.

CVE-2026-78327

CVE-2026-78327

An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the SonicWall Network Security Manager (NSM) On-Prem Management interface allows an authenticated attacker with SuperAdmin privileges to inject arbitrary commands that are executed on the underlying host, resulting in remote code execution.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

PSIRT@sonicwall.com

Frequently asked questions

What is CVE-2026-78327?: CVE-2026-78327 is a critical-severity vulnerability, classified under OS Command Injection. CVSS score: 9.1/10. Published 2026-09-04.
How severe is CVE-2026-78327?: Critical severity. CVSS v3 base score is 9.1 out of 10.