CVE-2003-0543: OpenSSL

Medium severity, CVSS 5.0. EPSS: 27.4% chance of exploitation in the next 30 days.

Integer overflow in OpenSSL 0.9.6 and 0.9.7 allows remote attackers to cause a denial of service (crash) via an SSL client certificate with certain ASN.1 tag values.

Affected products

• OpenSSL OpenSSL: version 0.9.6 only; version 0.9.7 only

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