CVE-2025-55102 Denial of service in Eclipse ThreadX - NetX Duo
A remote attacker can cause a denial of service in Eclipse ThreadX NetX Duo by sending a specially crafted IPv6 Packet Too Big message.
- 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-2025-55102?
CVE-2025-55102 is a high-severity denial of service vulnerability in Eclipse ThreadX - NetX Duo, published on 27 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A denial-of-service vulnerability exists in the NetX IPv6 component functionality of Eclipse ThreadX NetX Duo. A specially crafted network packet of "Packet Too Big" with more than 15 different source address can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.
Which versions are affected by CVE-2025-55102?
It affects 1 product.
Products include Eclipse Threadx Netx Duo.
How do I fix CVE-2025-55102?
No fix has been published for CVE-2025-55102 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-55102 being exploited?
There is no known exploitation of CVE-2025-55102 in the wild and no public exploit code.
Other vulnerabilities in Eclipse ThreadX - NetX Duo
- CVE-2025-55085 Web http client: Unchecked Server-Side Malicious Packet Issue
- 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-f3rx-xrwm-q2rf.