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
Source GCVE Database
Not known to be exploited · CVSS 9.1 Critical.
Data as of 9 Nov 2026, 23:24 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 10 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| SonicWallGMS | Affected
| Fixed in– |
AI-suggested
Until an official fix is available, restrict access to vulnerable GMS versions and monitor for suspicious activity related to zip file processing.
Description
An unauthenticated remote code execution vulnerability exists in GMS version 9.5.1 (Build 9510.1044) and earlier. This vulnerability allows a remote attacker to read sensitive data and perform arbitrary file writes via a zip slip attack. The vulnerability is identified as CVE-2026-66145 and has a high severity rating.