Is CVE-2006-5633 in the CISA KEV catalog?

No. CVE-2006-5633 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2006-5633?

CVE-2006-5633 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2006-5633?

CVE-2006-5633 has an EPSS score of 6.86% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2006-5633?

Upgrade firefox on debian unstable to 45.0-1 or later.

CVE & CISA-KEV Catalog

CVE-2006-5633

MEDIUMEPSS 93th pctl

5.0

CVSS v2

NVD

Description

Firefox 1.5.0.7 and 2.0, and Seamonkey 1.1b, allows remote attackers to cause a denial of service (crash) by creating a range object using createRange, calling selectNode on a DocType node (DOCUMENT_TYPE_NODE), then calling createContextualFragment on the range, which triggers a null dereference. NOTE: the original Bugtraq post mentioned that code execution was possible, but followup analysis has shown that it is only a null dereference.

How to fix

Remediation Available

firefoxDebian

Fixed in:45.0-1CVE-2006-5633

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

6.86%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Exploit5

Other references6

Embed a live status badge for CVE-2006-5633

Markdown

[![CVE-2006-5633](https://tridentstack.com/cve/badge/CVE-2006-5633.svg)](https://tridentstack.com/cve/CVE-2006-5633)

HTML

<a href="https://tridentstack.com/cve/CVE-2006-5633"><img src="https://tridentstack.com/cve/badge/CVE-2006-5633.svg" alt="CVE-2006-5633"></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 2026-04-23.