Login Request a demo
High severity · published Apr 6, 2025
CVE-2025-2259
Eclipse ThreadX NetX Duo component HTTP server single PUT request integer underflow
7.5
CVSS
1%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TH
ThreadX · Eclipse Foundation
before 6.4.2 · source: vendor
TN
Threadx Netx Duo · Eclipse
before 6.4.3 · source: NVD
Affected product
TH
ThreadX
Eclipse Foundation
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-2259
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-2259
Patch
https://github.com/eclipse-threadx/netxduo/commit/fb3195bbb6d0d6fe71a7a19585c008623c217f9e
Vendor Advisory
https://github.com/eclipse-threadx/netxduo/security/advisories/GHSA-chhp-gmxc-46rq
Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2104
More from ThreadX
9.8
CVE-2024-2452
Integer wraparound, under-allocation, and heap buffer overflow in Eclipse ThreadX NetX Duo __portable_aligned_alloc()
8.5
CVE-2026-102757
An unprivileged, memory-protected ThreadX module can have the kernel read and write memory at addresses of its choosing, in privileged mode, and can use that to clear the MPU…
8.4
CVE-2026-102709
Improper validation of non-secure (NS) pointers in multiple TrustZone-M non-secure callable (NSC) entry functions allows an attacker executing in the non-secure world to supply…
7.8
CVE-2024-2212
Integer wraparounds, under-allocations, and heap buffer overflows in Eclipse ThreadX xQueueCreate() and xQueueCreateSet()
7.8
CVE-2024-2214
Missing array size check in _Mtxinit() in the Xtensa port