6.9
Medium
CVE-2026-102721 TFTP client and server copy the ERROR packet message without bounding the read against the packet
Description
In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603a, the TFTP client copies the message of a received ERROR packet without bounding the copy by the end of the datagram, and the TFTP server reads one byte past a minimal ERROR packet. A malicious TFTP server can make the client copy up to 64 bytes of adjacent packet-pool memory into the error string the application retrieves, or fault on targets with memory protection.
CVSS 4.0 detail
Vector CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:NExploitable remotely over the network, without an account and without any user action; the impact on data or service is limited.
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- Interaction
- None
- Confidentiality
- Low
- Integrity
- None
- Availability
- Low
- Confidentiality of other systems
- None
- Integrity of other systems
- None
- Availability of other systems
- None
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| NetX Duo 6.5 | earliest → 6.5.1 | No fix stated |
| Eclipse ThreadX NetX Duo 6.5 | earliest → < 6.5.2.202603b | 6.5.2.202603b |
| Eclipse ThreadX NetX Duo 6.0 | 6.0 → 6.5.2.202603a | No fix stated |
References
- github.com github.com
Timeline
- Published
- Last modified
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