CVE-2003-0545
CRITICALEPSS 100th pctlDescription
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.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Very high risk: more likely to be exploited than 100% of all known CVEs.
References
Related Vulnerabilities
Other CWE-415 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-25136 | Medium | 6.5 | 90% | - | Fix |
| CVE-2018-0101 | Critical | 10.0 | 87% | - | Fix |
| CVE-2019-3829 | Medium | 5.3 | 59% | - | Fix |
| CVE-2026-33824 | Critical | 9.8 | 56% | - | Fix |
| CVE-2021-3407 | Medium | 5.5 | 50% | - | Fix |
| CVE-2026-23918 | High | 8.8 | 50% | - | Fix |
Common questions
How do I fix CVE-2003-0545?
Upgrade openssl on debian 11 to 0.9.7c or later.
Is CVE-2003-0545 being actively exploited?
Not that we know of. CVE-2003-0545 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 85.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.
How severe is CVE-2003-0545?
CVE-2003-0545 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2003-0545 affect?
Published advisories record a fix for openssl (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
Embed a live status badge for CVE-2003-0545
Markdown
[](https://tridentstack.com/cve/CVE-2003-0545)HTML
<a href="https://tridentstack.com/cve/CVE-2003-0545"><img src="https://tridentstack.com/cve/badge/CVE-2003-0545.svg" alt="CVE-2003-0545"></a>Find and fix vulnerabilities across your fleet
TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.
This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.