CVE-2003-0545: OpenSSL

Critical severity, CVSS 9.8. EPSS: 87.5% chance of exploitation in the next 30 days.

Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via an SSL client certificate with a certain invalid ASN.1 encoding.

Affected products

• OpenSSL OpenSSL: version 0.9.6 only; version 0.9.7 only

Published 2003-11-17. Last modified 2026-06-16.