9.1

CVE-2026-78327: sonicwall network security manager (nsm) OS Command Injection

CVSS: 9.1v3.1CriticalAwaiting analysis
Published 04-09-2026Last modified 04-09-2026
Open JSON

Vulnerability summary

CVE-2026-78327 is a critical (CVSS 9.1) OS Command Injection vulnerability in sonicwall network security manager (nsm). EPSS estimates a 1.55% chance of exploitation in the next 30 days, higher than 74.6% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.1/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.55%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 04-09-2026
    PublishedVulnerability first disclosed.
  2. 04-09-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.55%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

0.00 pp

From 1.55% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.55%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Sonicwall1 product

1 vendor · 1 product

References

1 links