CVE-2021-42143 describes an infinite loop vulnerability in Contiki-NG tinyDTLS, specifically affecting versions up to master branch 53a0d97. This critical flaw (CVSS 9.1) allows remote attackers to trigger a denial of service and potential information disclosure by sending a malformed ClientHello handshake message with an odd number of cipher suites. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 2018-08-30CPE matchmatch criteria | cpe:2.3:a:contiki-ng:tinydtls:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.