CVE-2003-0545

Name: CVE-2003-0545
Creator: NVD / NIST
Published: 2003-11-17T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 85.45%

Last modified Jun 16, 2026

CVE-2003-0545 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 85.45% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

85.45%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-415

Affected Software

Vendor	Product	Versions
Openssl	Openssl	0.9.6
Openssl	Openssl	0.9.7

References

http://secunia.com/advisories/22249Broken Link, Vendor Advisory
http://www-1.ibm.com/support/docview.wss?uid=swg21247112Broken Link
http://www.cert.org/advisories/CA-2003-26.htmlThird Party Advisory, US Government Resource
http://www.debian.org/security/2003/dsa-394Broken Link
http://www.kb.cert.org/vuls/id/935264Third Party Advisory, US Government Resource
http://www.redhat.com/support/errata/RHSA-2003-292.htmlBroken Link, Patch, Vendor Advisory
http://www.securityfocus.com/bid/8732Broken Link, Third Party Advisory, VDB Entry
http://www.uniras.gov.uk/vuls/2003/006489/openssl.htmBroken Link, Patch, Vendor Advisory
http://www.vupen.com/english/advisories/2006/3900Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2590Broken Link
http://secunia.com/advisories/22249Broken Link, Vendor Advisory
http://www-1.ibm.com/support/docview.wss?uid=swg21247112Broken Link
http://www.cert.org/advisories/CA-2003-26.htmlThird Party Advisory, US Government Resource
http://www.debian.org/security/2003/dsa-394Broken Link
http://www.kb.cert.org/vuls/id/935264Third Party Advisory, US Government Resource
http://www.redhat.com/support/errata/RHSA-2003-292.htmlBroken Link, Patch, Vendor Advisory
http://www.securityfocus.com/bid/8732Broken Link, Third Party Advisory, VDB Entry
http://www.uniras.gov.uk/vuls/2003/006489/openssl.htmBroken Link, Patch, Vendor Advisory
http://www.vupen.com/english/advisories/2006/3900Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2590Broken Link

Timeline

Published: Nov 17, 2003
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2003-0545?

How severe is CVE-2003-0545?

CVE-2003-0545 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 85.45% probability of exploitation in the next 30 days.

How do I fix CVE-2003-0545?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2003-0545?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST