CVE-2021-42144

9.8 criticalEPSS 0.7%

Critical (9.8) in contiki-ng contiki-ng tinydtls. EPSS 0.7% chance of exploitation in the next 30 days.

Buffer over-read vulnerability in Contiki-NG tinyDTLS through master branch 53a0d97 allows attackers obtain sensitive information via crafted input to dtls_ccm_decrypt_message().

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
CWE: CWE-125
Published: 2024-01-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

contiki-ng:contiki-ng_tinydtls

References

https://seclists.org/fulldisclosure/2024/Jan/17
http://seclists.org/fulldisclosure/2024/Jan/17
https://seclists.org/fulldisclosure/2024/Jan/17

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