CVE-2013-6450: OpenSSL

Medium severity, CVSS 5.8. EPSS: 15.3% chance of exploitation in the next 30 days.

The DTLS retransmission implementation in OpenSSL 1.0.0 before 1.0.0l and 1.0.1 before 1.0.1f does not properly maintain data structures for digest and encryption contexts, which might allow man-in-the-middle attackers to trigger the use of a different context and cause a denial of service (application crash) by interfering with packet delivery, related to ssl/d1_both.c and ssl/t1_enc.c.

Affected products

• OpenSSL OpenSSL: version 1.0.0 only; version 1.0.0a only; version 1.0.0b only; version 1.0.0c only; version 1.0.0d only; version 1.0.0e only; …

Published 2014-01-01. Last modified 2026-06-17.