CVE-2015-0207: OpenSSL

Medium severity, CVSS 5.0. EPSS: 6.5% chance of exploitation in the next 30 days.

The dtls1_listen function in d1_lib.c in OpenSSL 1.0.2 before 1.0.2a does not properly isolate the state information of independent data streams, which allows remote attackers to cause a denial of service (application crash) via crafted DTLS traffic, as demonstrated by DTLS 1.0 traffic to a DTLS 1.2 server.

Affected products

• OpenSSL OpenSSL: version 1.0.2 only

Published 2015-03-19. Last modified 2026-06-17.