# CVE-2026-66145: SonicWall GMS remote code execution via zipslip

Source: https://junglewise.ai/threats/cve-2026-66145-sonicwall-gms-remote-code-execution-via-zipslip  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-11. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-66145 · Severity: critical · CVSS 9.1 · Published 2026-08-11

GMS (Gesture Management System) is SonicWall's centralized management platform for security appliances. An unauthenticated remote attacker can exploit a path traversal vulnerability in archive handling to write arbitrary files and execute code on the management server, compromising all connected security devices and sensitive organizational data.

Technologies: [SonicWall GMS](https://junglewise.ai/threats/technologies/gms). Vendors: [SonicWall](https://junglewise.ai/threats/vendors/sonicwall).

## Quick answers

**Is CVE-2026-66145 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-66145 being exploited in the wild.

**How severe is CVE-2026-66145?** Critical severity, with a CVSS score of 9.1, published 11 August 2026.

**Which products and versions are affected?** SonicWall GMS 9.5.1 (Build 9510.1044) and earlier.

**Is there a fix for CVE-2026-66145?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-66145 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-66145?** Check whether you run SonicWall GMS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a zipslip path traversal flaw in archive extraction logic that allows unauthenticated remote attackers to read sensitive data and perform arbitrary file writes on the GMS server. The vulnerability exists in GMS versions 9.5.1 (Build 9510.1044) and earlier. Because GMS is a centralized management console typically accessible from the network, the attack vector is network-based and requires no authentication or user interaction. An attacker can leverage arbitrary file write to achieve remote code execution with GMS process privileges.

## Affected products

- SonicWall GMS 9.5.1 (Build 9510.1044) and earlier

## Timeline

- 2026-08-11: disclosed

## References

- [https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2026-0011)

## Related threats

- [SonicWall GMS SQL injection](https://junglewise.ai/threats/cve-2026-109594-post-authentication-improper-neutralization-of-special-elements)
- [SonicWall GMS arbitrary file read](https://junglewise.ai/threats/cve-2026-109593-an-unauthenticated-attacker-with-network-access-to-the-sonicwall)
- [SonicWall GMS cross-site scripting](https://junglewise.ai/threats/cve-2026-66146-sonicwall-gms-cross-site-scripting)