High severity7.5NVD Advisory· Published Aug 9, 2021· Updated Jun 17, 2026
CVE-2021-38311
CVE-2021-38311
Description
In Contiki 3.0, potential nonterminating acknowledgment loops exist in the Telnet service. When the negotiated options are already disabled, servers still respond to DONT and WONT requests with WONT or DONT commands, which may lead to infinite acknowledgment loops, denial of service, and excessive CPU consumption.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Contiki/Contikidescription
- Range: =3.0
Patches
Vulnerability mechanics
References
1- github.com/contiki-os/contiki/issues/2685nvdExploitIssue TrackingPatchThird Party Advisory
News mentions
0No linked articles in our index yet.