Is CVE-2004-0643 in the CISA KEV catalog?

No. CVE-2004-0643 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-0643?

CVE-2004-0643 has a CVSS v2 base score of 4.6 (MEDIUM).

What is the EPSS score for CVE-2004-0643?

CVE-2004-0643 has an EPSS score of 1.43% (70th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-0643?

Upgrade krb5 on debian 11 to 1.3.4-3 or later.

CVE & CISA-KEV Catalog

CVE-2004-0643

MEDIUM

4.6

CVSS v2

NVD

Description

Double free vulnerability in the krb5_rd_cred function for MIT Kerberos 5 (krb5) 1.3.1 and earlier may allow local users to execute arbitrary code.

CWE-415

How to fix

Remediation Available

krb5Debian

Fixed in:1.3.4-3CVE-2004-0643

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.43%probability of exploitation in 30 days

70thpercentile

Moderate risk: more likely to be exploited than 70% of all known CVEs.

References

Patch1

web.mit.edu

Vendor Advisory1

gentoo.org

Third-Party Advisory9

Other references2

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-2003-0545	Critical	9.8	85%	-	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

Embed a live status badge for CVE-2004-0643

Markdown

[![CVE-2004-0643](https://tridentstack.com/cve/badge/CVE-2004-0643.svg)](https://tridentstack.com/cve/CVE-2004-0643)

HTML

<a href="https://tridentstack.com/cve/CVE-2004-0643"><img src="https://tridentstack.com/cve/badge/CVE-2004-0643.svg" alt="CVE-2004-0643"></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.

Start free

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.