CVE-2025-55102: Eclipse ThreadX – NetX Duo · Uncontrolled Resource Consumption
Affects Eclipse ThreadX – NetX DuoSource CVE Database V5
Not known to be exploited · CVSS 8.7 High.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 27 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Eclipse FoundationEclipse ThreadX - NetX Duo | Affected
| Fixed in– |
GitHubEclipse ThreadX - NetX Duopkg:github/Eclipse ThreadX - NetX DuoOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
1. Monitor Eclipse Foundation advisories and apply patches or updates to the NetX Duo component as soon as they become available. 2. Implement network-level filtering to block or rate-limit ICMPv6 'Packet Too Big' messages, especially those containing multiple source addresses, using firewalls or intrusion prevention systems. 3. Segment and isolate embedded devices running NetX Duo from untrusted networks to reduce exposure to external attackers. 4. Employ IPv6 traffic inspection and anomaly detection tools to identify and block malformed or suspicious ICMPv6 packets. 5. Conduct regular security assessments of embedded devices and network stacks to identify outdated or vulnerable components. 6. Collaborate with device vendors to ensure timely firmware updates and security patches. 7. Where possible, disable unnecessary IPv6 functionality or ICMPv6 message types on embedded devices if not required for operation. 8. Maintain robust incident response plans that include embedded device recovery procedures to minimize downtime in case of exploitation.
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.