Is CVE-2004-0642 in the CISA KEV catalog?

No. CVE-2004-0642 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-0642?

CVE-2004-0642 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2004-0642?

CVE-2004-0642 has an EPSS score of 8.26% (94th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2004-0642?

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

CVE & CISA-KEV Catalog

CVE-2004-0642

HIGHEPSS 94th pctl

7.5

CVSS v2

NVD

Description

Double free vulnerabilities in the error handling code for ASN.1 decoders in the (1) Key Distribution Center (KDC) library and (2) client library for MIT Kerberos 5 (krb5) 1.3.4 and earlier may allow remote attackers to execute arbitrary code.

CWE-415

How to fix

Remediation Available

krb5Debian

Fixed in:1.3.4-3CVE-2004-0642

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

8.26%probability of exploitation in 30 days

94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Patch1

web.mit.edu

Third-Party Advisory10

Other references2

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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.