Integer Underflow Vulnerability in Eclipse ThreadX NetX Duo HTTP Server
CVE-2025-0727

5.3MEDIUM

Key Information:

Vendor
Eclipse Foundation
Status
Threadx
Vendor
CVE Published:
21 February 2025

Summary

The NetX HTTP server in Eclipse ThreadX NetX Duo versions prior to 6.4.2 is vulnerable to an integer underflow. This flaw allows an attacker to create denial of service conditions by sending specially crafted packets with a Content-Length header smaller than the actual data size. This can occur when attempting to write a large file, leading to potential disruptions in service. It is recommended to disable HTTP PUT support as a workaround until a patch is applied.

Affected Version(s)

ThreadX 0 < 6.4.1

References

https://github.com/eclipse-threadx/netxduo/commit/c78d650...
patch
https://github.com/eclipse-threadx/netxduo/security/advis...
vendor-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kelly Patterson of Cisco Talos
.