CVE-2025-2259
highpriority · track · 30EPSS 0.010 · 61 %ileEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 1.3–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-2259cnnvd
- https://github.com/eclipse-threadx/netxduo/commit/fb3195bbb6d0d6fe71a7a19585c008623c217f9ecnnvd
- https://github.com/eclipse-threadx/netxduo/releases/tag/v6.4.3_relPatchcnnvd
- https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-chhp-gmxc-46rqcnnvd
- https://github.com/eclipse-threadx/netxduo/commit/fb3195bbb6d0d6fe71a7a19585c008623c217f9eenisa_euvd
- https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-chhp-gmxc-46rqenisa_euvd
- https://github.com/eclipse-threadx/netxduo/commit/fb3195bbb6d0d6fe71a7a19585c008623c217f9ePatchnvd
- https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-chhp-gmxc-46rqVendor Advisorynvd
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