Vulnerability · Published Sep 4, 2026 · Assigned by sonicwall

CVE-2026-78327

Critical 9.1

In plain English

A critical-severity OS command injection in Network Security Manager (NSM) from SonicWall. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 75% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)1.6%top 24.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
SonicWall	Network Security Manager (NSM)	4.3.0 and earlier versions

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0015 vendor-advisory