CVE-2025-2259

In NetX HTTP server functionality of Eclipse ThreadX NetX Duo before version 6.4.3, an attacker can cause an integer underflow and a subsequent denial of service by writing a very large file, by specially crafted packets with Content-Length in one packet smaller than the data request size of the other packet. A possible workaround is to disable HTTP PUT support. This issue follows an incomplete fix of CVE-2025-0727

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/eclipse-threadx/netxduo/commit/fb3195bbb6d0d6fe71a7a19585c008623c217f9e	Patch
https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-chhp-gmxc-46rq	Vendor Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2104	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:eclipse:threadx_netx_duo:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-04-06 19:15

Updated : 2025-07-31 16:34

NVD link : CVE-2025-2259

Mitre link : CVE-2025-2259

CVE.ORG link : CVE-2025-2259

JSON object : View

Products Affected

eclipse

threadx_netx_duo

CWE

CWE-191

Integer Underflow (Wrap or Wraparound)

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