9.4

CVE-2026-66147: sonicwall gms Code Injection

CVSS: 9.4v3.1CriticalAwaiting analysis
Published 11-08-2026Last modified 12-08-2026
Open JSON

Vulnerability summary

CVE-2026-66147 is a critical (CVSS 9.4) Code Injection vulnerability in sonicwall gms. EPSS estimates a 1.76% chance of exploitation in the next 30 days, higher than 77.7% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.4/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.76%
0%100%
Low · -0.24 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 11-08-2026
    PublishedVulnerability first disclosed.
  2. 12-08-2026
    Last modifiedVulnerability information updated.

Description

An unauthenticated command injection vulnerability was identified in the GMS Dispatcher Service in GMS 9.5.1 and earlier versions which allows remote attacker to perform remote code execution through specially crafted requests.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.76%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

-0.24 pp

From 2.00% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.76%

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
  • gms9.5.1 and earlier versions

1 vendor · 1 product

References

1 links