CVE intelligence

CVE-2026-78327

Vulnerability intelligence

Published Sep 4, 2026Sources checked Oct 7, 2026

9.1CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-78327 and is rated Critical severity with a CVSS score of 9.1. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

SonicWall PSIRT Advisories guidance

Vendor revision: Sep 4, 2026

Install the applicable fixed SonicWall release for your product and branch.

Vendor-listed releases

Fixed Product(s): Fixed Versions
Network Security Manager (NSM) On-Prem (VMWare, Hyper-V, Azure and KVM): 4.3.1-R4 and higher versions.

CISA KEVNot listedBased on the latest collected catalog

EPSS1.6%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is 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.

Source: NVD