# CVE-2026-8363: Gladinet Triofox Server Agent stack overflow in WOSDeviceDropFolder.dll

Source: https://junglewise.ai/threats/cve-2026-8363-gladinet-triofox-server-agent-stack-overflow-in  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-27. Updated: 2026-05-27  
License: CC BY 4.0 with a link back

CVE-2026-8363 · Severity: critical · CVSS 9.8 · Published 2026-05-27

Gladinet Triofox Server Agent is a software component used to facilitate secure remote file access and synchronization for corporate data. A critical vulnerability in this agent allows an unauthenticated attacker to send a specially crafted network request that can crash the service or potentially execute malicious code. This could lead to a complete takeover of the server hosting the agent, resulting in unauthorized access to sensitive corporate files and data.

Technologies: [Gladinet Triofox Server Agent](https://junglewise.ai/threats/technologies/triofox-server-agent). Vendors: [Gladinet](https://junglewise.ai/threats/vendors/gladinet).

## Quick answers

**Is CVE-2026-8363 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-8363 being exploited in the wild.

**How severe is CVE-2026-8363?** Critical severity, with a CVSS score of 9.8, published 27 May 2026.

**Which products and versions are affected?** Gladinet Triofox Server Agent 17.1.10488.57063.

**Is there a fix for CVE-2026-8363?** 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-2026-8363 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-8363?** Check whether you run Gladinet Triofox Server Agent 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

A stack-based buffer overflow vulnerability exists in the WOSDeviceDropFolder.dll component of Gladinet Triofox Server Agent. The GladServerAgentService.exe process listens on TCP port 7878 and fails to properly validate the length of URL paths starting with the '/resources' prefix. An unauthenticated remote attacker can exploit this by sending a crafted HTTP request with an excessively long URL, leading to memory corruption. Successful exploitation could allow for arbitrary code execution with the privileges of the service, while unsuccessful attempts will result in a denial-of-service condition. The vulnerability was identified in version 17.1.10488.57063.

## Affected products

- Gladinet Triofox Server Agent 17.1.10488.57063

## Timeline

- 2026-05-27: disclosed: Vulnerability disclosed by Tenable Research.
- 2026-05-27: advisory: NVD published CVE-2026-8363.

## References

- [https://www.tenable.com/security/research/TRA-2026-45](https://www.tenable.com/security/research/TRA-2026-45)

## Related threats

- [Gladinet Triofox Server Agent missing authentication in Access Service](https://junglewise.ai/threats/cve-2026-8364-gladinet-triofox-server-agent-missing-authentication-in-access)
- [Gladinet Triofox Server Agent stack overflow in WOSDefaultHttpModule.dll](https://junglewise.ai/threats/cve-2026-8362-gladinet-triofox-server-agent-stack-overflow-in)
- [Gladinet Triofox Server Agent path traversal in WOSDefaultHttpModule.dll](https://junglewise.ai/threats/cve-2026-8361-gladinet-triofox-server-agent-path-traversal-in)
- [Gladinet Triofox Server Agent NULL pointer dereference in WOSCommonUtil.dll](https://junglewise.ai/threats/cve-2026-8360-gladinet-triofox-server-agent-null-pointer-dereference-in)
- [Gladinet Triofox Server Agent NULL pointer dereference in GladServerAgentService](https://junglewise.ai/threats/cve-2026-8359-gladinet-triofox-server-agent-null-pointer-dereference-in)