What is CVE-2026-66145?

CVE-2026-66145 is a critical-severity vulnerability in Sonicwall Gms, classified under Code Injection. CVSS score: 9.1/10. Published 2026-08-11.

How severe is CVE-2026-66145?

Critical severity. CVSS v3 base score is 9.1 out of 10.

RCE in Sonicwall Gms

CVE-2026-66145

An unauthenticated remote code execution vulnerability was identified in GMS 9.5.1 (Build 9510.1044) and earlier versions which allows remote attacker to read sensitive data and perform arbitrary file write via zipslip.

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Sonicwall Gms — versions 9.5.1 and earlier versions

Weakness classification (CWE)

CWE-94 — Code Injection

References

PSIRT@sonicwall.com (vendor-advisory)

Frequently asked questions

What is CVE-2026-66145?: CVE-2026-66145 is a critical-severity vulnerability in Sonicwall Gms, classified under Code Injection. CVSS score: 9.1/10. Published 2026-08-11.
How severe is CVE-2026-66145?: Critical severity. CVSS v3 base score is 9.1 out of 10.