VDB

CVE-2025-65493

CVE-2025-65493 PUBLISHED CVSS 7.5 HIGH

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.

EPSS 0.38% · 30.8th percentile

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
0.38%
30.8th percentile

Affected Products

VendorProductVersions
libcoaplibcoap4.3.5
n/an/an/a

Timeline

  • Nov 24, 2025 CVE Published
  • Nov 24, 2025 CVE Updated
  • Nov 25, 2025 EPSS Score
  • Nov 30, 2025 EPSS Score
  • Dec 5, 2025 EPSS Score
  • Dec 10, 2025 EPSS Score
  • Dec 14, 2025 EPSS Score
  • Dec 19, 2025 EPSS Score
  • Dec 24, 2025 EPSS Score
  • Dec 29, 2025 EPSS Score
  • Jan 3, 2026 EPSS Score
  • Jan 8, 2026 EPSS Score
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