VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVPublished CVSS 9.1 criticalEPSS 1.6% probability of exploitation in 30 days
SonicWall

CVE-2026-78327: An Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in the So…

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?
1.6%

EPSS score, percentile 75 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
9.1 Critical

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (1)

Which versions are affected?

Affected

  • 4.3.0 and earlier versions

Versions by product

Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

What to do

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

As listed in the CVE record.

SonicWall Network Security Manager (NSM)
StatusVersions
Affected4.3.0 and earlier versions

Versions not listed are: unknown.

Source: CVE List, as of . About the data.

About this vulnerability

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.

Summary: CVE record, as of .

  • CISA has not added CVE-2026-78327 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
  • The CVE record was published on 4 Sep 2026.
  • The CVE record carries a CVSS v3.1 base score of 9.1 (Critical), taken from CISA's enrichment of the record.
  • FIRST's EPSS model puts the probability of exploitation in the next 30 days at 1.6% (percentile 75), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
  • CISA's SSVC assessment in the CVE record: exploitation none, automatable no, technical impact total.

Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.

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.

Source: CVE List, as of . About the data.

Weakness

CWE-78
  • CWE-78: Improper neutralization of special elements used in an OS command ('OS command injection')

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published

Known exploited SonicWall vulnerabilities

  • CVE-2026-83548: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability (added )
  • CVE-2026-83549: SonicWall SMA1000 Appliances OS Command Injection Vulnerability (added )
  • CVE-2026-15409: SonicWall SMA1000 Appliances Server-Side Request Forgery Vulnerability (added )
  • CVE-2026-15410: SonicWall SMA1000 Appliances Code Injection Vulnerability (added )
  • CVE-2025-40602: SonicWall SMA1000 Missing Authorization Vulnerability (added )