Libcoap vulnerabilities

Products

• Libcoap 18

Newest

• libcoap libcoap Out-of-Bounds Read in OSCORE CBOR Unwrap Handling CVE-2026-29013 Fix available 8.8 HighApril 17, 2026
• libcoap libcoap Stack-Based Buffer Overflow in Address Resolution DoS or Potential RCE CVE-2025-34468 Fix available 8.2 HighDecember 31, 2025
• libcoap A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap... CVE-2025-59391 Fix available 6.5 MediumDecember 8, 2025
• libcoap Null pointer dereference in coap_dtls_info_callback() in OISM libcoap 4.3.5 allows remote... CVE-2025-65501 Fix available 4.3 MediumNovember 24, 2025
• libcoap NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3... CVE-2025-65500 Fix available 4.3 MediumNovember 24, 2025
• libcoap Array index error in tls_verify_call_back() in src/coap_openssl.c in OISM libcoap 4.3.5 allows... CVE-2025-65499 Fix available 4.3 MediumNovember 24, 2025
• libcoap NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3... CVE-2025-65498 Fix available 4.3 MediumNovember 24, 2025
• libcoap NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3... CVE-2025-65497 Fix available 4.3 MediumNovember 24, 2025
• libcoap NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3... CVE-2025-65496 Fix available 4.3 MediumNovember 24, 2025
• libcoap Integer signedness error in tls_verify_call_back() in src/coap_openssl.c in OISM libcoap 4.3.5... CVE-2025-65495 Fix available 7.5 HighNovember 24, 2025
• libcoap NULL pointer dereference in get_san_or_cn_from_cert() in src/coap_openssl.c in OISM libcoap 4.3.5... CVE-2025-65494 Fix available 7.5 HighNovember 24, 2025
• libcoap NULL pointer dereference in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to... CVE-2025-65493 Fix available 7.5 HighNovember 24, 2025
• libcoap A Buffer Overflow vulnerability in libcoap v4.3.5-rc2 and below allows a remote attacker to cause... CVE-2024-46304 Fix available 7.5 HighOctober 9, 2024
• libcoap An issue in obgm and Libcoap v.a3ed466 allows a remote attacker to cause a denial of service via... CVE-2023-51847 7.5 HighJune 6, 2024
• libcoap, fedoraproject fedora +1 more An issue in `coap_pdu.c` in libcoap 4.3.4 allows attackers to cause undefined behavior via a... CVE-2024-31031 Fix available 7.5 HighApril 17, 2024
• libcoap obgm libcoap Configuration File coap_oscore.c get_split_entry stack-based overflow CVE-2024-0962 Fix available 6.3 MediumJanuary 27, 2024
• libcoap Buffer Overflow vulnerability in coap_send function in libcoap library 4.3.1-103-g52cfd56 fixed... CVE-2023-30362 Fix available 7.5 HighJune 23, 2023
• libcoap libcoap 4.3.1 contains a buffer over-read via the function coap_parse_oscore_conf_mem at... CVE-2023-35862 6.5 MediumJune 19, 2023