CVE-2025-2259mediumCWE-191

CVE-2025-2259: medium-severity vulnerability in Eclipse Foundation ThreadX

Eclipse ThreadX NetX Duo component HTTP server single PUT request integer underflow

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13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 1.0%
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
Eclipse Foundation · ThreadX
Related CVEs — Eclipse Foundation ThreadX

In the same product, most dangerous first.

CVE-2025-2260HIGHEclipse ThreadX NetX Duo HTTP component server denial of serviceEPSS 1.0%CVE-2025-2258MEDIUMEclipse ThreadX NetX Duo HTTP server single PUT request integer underflowEPSS 1.0%CVE-2024-2452HIGHInteger wraparound, under-allocation, and heap buffer overflow in Eclipse ThreadX NetX Duo __portable_aligned_alloc()EPSS 0.9%CVE-2025-0728MEDIUMEclipse ThreadX NetX Duo HTTP server single PUT request integer underflowEPSS 0.8%CVE-2025-0727MEDIUMEclipse ThreadX NetX Duo HTTP server single PUT request integer underflowEPSS 0.8%CVE-2025-0726HIGHEclipse ThreadX NetX Duo HTTP server denial of serviceEPSS 0.8%