Unbounded DATA datagram in the NetX Duo TFTP server causes an out-of-bounds read and a permanent stall
Priority MEDIUM 42CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.
Summary
In Eclipse ThreadX NetX Duo versions up to and including 6.5.2.202603, built with packet chaining, the TFTP server does not bound the length of a received DATA datagram. An unauthenticated peer can upload an oversized datagram that writes memory beyond the received packet into the file and read it back by downloading the file, and the same datagram can suspend the server thread permanently.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00253 16th percentileScored 2026-11-07
Fix Fixed Eclipse ThreadX NetX Duo (Eclipse Foundation): 6.5.2.202603a
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX NetX Duo | up to 6.5.2.202603 | 6.5.2.202603a | Patch available | CNA |
- Eclipse ThreadX NetX Duo VendorEclipse Foundation Affected up to 6.5.2.202603 Fixed in 6.5.2.202603a Patch available CNA
Remediation
- Fix · CNA Eclipse ThreadX NetX Duo (Eclipse Foundation) Fixed in 6.5.2.202603a
Timeline
- 2026-10-02 Threatist record created from CVE-2026-102713
- 2026-10-03 Alias added: GHSA-fhxv-gc8j-2f6h
- 2026-11-04 Title updated · CNA
- 2026-11-04 CVSS score changed · CNA
- 2026-11-04 Fix available: Eclipse Foundation/Eclipse ThreadX NetX [email protected] · CNA
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Sources
- CVE-2026-102713 · CVE Program
- CVE-2026-102713 · NVD
- FIRST EPSS
- GHSA-fhxv-gc8j-2f6h · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences