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CVE-2025-65493 Affecting libcoap3 package, versions *

Severity

 Recommended
low

Based on default assessment until relevant scores are available.

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  • Snyk IDSNYK-DEBIAN14-LIBCOAP3-14104221
  • published25 Nov 2025
  • disclosed24 Nov 2025
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Introduced: 24 Nov 2025

NewCVE-2025-65493  (opens in a new tab)

How to fix?

There is no fixed version for Debian:14 libcoap3.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcoap3 package and not the libcoap3 package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

NULL pointer dereference in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS/TLS connection that triggers BIO_get_data() to return NULL.