CVE-2023-35862: Libcoap

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

libcoap 4.3.1 contains a buffer over-read via the function coap_parse_oscore_conf_mem at coap_oscore.c.

Affected products

• Libcoap Libcoap: version 4.3.1 only

Published 2023-06-19. Last modified 2026-06-17.