CVE-2025-55085 Web http client: Unchecked Server-Side Malicious Packet Issue
A missing bounds check in the NetX Duo HTTP client allows a malicious server to trigger undefined behavior, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-55085?
CVE-2025-55085 is a high-severity memory corruption vulnerability in Eclipse Foundation NetX Duo, published on 17 Oct 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In NextX Duo before 6.4.4, in the HTTP client module, the network support code for Eclipse Foundation ThreadX, the parsing of HTTP header fields was missing bounds verification. A crafted server response could cause undefined behavior.
Which versions are affected by CVE-2025-55085?
It affects 1 product.
Products include Eclipse Threadx Netx Duo.
How do I fix CVE-2025-55085?
No fix has been published for CVE-2025-55085 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-55085 being exploited?
There is no known exploitation of CVE-2025-55085 in the wild and no public exploit code.
Other vulnerabilities in Eclipse Foundation NetX Duo
- CVE-2025-55102 Denial of service in Eclipse ThreadX - NetX Duo
- CVE-2026-11576 Memory corruption in Eclipse ThreadX - NetX Duo
- CVE-2025-2260 Eclipse ThreadX NetX Duo HTTP component server denial of service
- CVE-2025-0726 Eclipse ThreadX NetX Duo HTTP server denial of service
- CVE-2024-2452 Integer wraparound, under-allocation, and heap buffer overflow in Eclipse ThreadX NetX Duo __portable_aligned_alloc()
Sources
Also known as GHSA-9c77-rgp9-c2g2.