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CVE-2003-0545

CRITICAL

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.

Published: Nov 17, 2003 Modified: Jun 16, 2026
CWE-415

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (2)

Vendor Product Version
openssl openssl 0.9.6
openssl openssl 0.9.7

GitHub Security Advisory GHSA-mmjc-3g2p-897m

Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service ...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 85.45%

Top 0% most likely to be exploited

Threat Score 74.8 / 100

Data Sources

NVD EPSS GitHub