CVE-2006-3672: KDE Konqueror 3.5.1 and earlier allows remote attackers to cause a denial of service (application crash) by ca

Q: How do I fix CVE-2006-3672?

konqueror: upgrade to newer than 3.5.1. Exact commands for each OS are on this page.

Q: Is CVE-2006-3672 being exploited?

CVE-2006-3672 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-3672 affect?

CVE-2006-3672 affects konqueror. Severity is low (CVSS 2.6). KDE Konqueror 3.5.1 and earlier allows remote attackers to cause a denial of service (application crash) by calling the replaceChild method on a DOM object, which triggers a null dereference, as demonstrated by calling document.replaceChild

Q: How urgent is CVE-2006-3672?

Priority 38/100. EPSS top 6%: very likely to be exploited; Public exploit reference

Routine

LOW 2.6UPGRADE

CVE-2006-3672 is a low-severity flaw (CVSS 2.6) affecting konqueror. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

KDE Konqueror 3.5.1 and earlier allows remote attackers to cause a denial of service (application crash) by calling the replaceChild method on a DOM object, which triggers a null dereference, as demonstrated by calling document.replaceChild with a 0 (zero) argument.

Why this priority

EPSS top 6%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	6.9% (top 6%)
CISA exploited list	No
Published	2006-07-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: kde

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-07-18 15:47 UTCPublished CVE record published
2026-06-16 22:27 UTCUpdated Record last modified

kde konqueror UPGRADE

Affected: <= 3.5.1 · 2.1.1 · 2.1.2 · 2.2.1 · 2.2.2 · 3.0 · 3.0.1 · 3.0.2

Fixed in: newer than 3.5.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy konqueror || rpm -q konqueror || konqueror --version

2. UPGRADE to newer than 3.5.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade konqueror

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade konqueror

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: KDE Konqueror 3.5.x - ReplaceChild Denial of Service

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-3672?

konqueror: upgrade to newer than 3.5.1. Exact commands for each OS are on this page.

Is CVE-2006-3672 being exploited?

CVE-2006-3672 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-3672 affect?

CVE-2006-3672 affects konqueror. Severity is low (CVSS 2.6). KDE Konqueror 3.5.1 and earlier allows remote attackers to cause a denial of service (application crash) by calling the replaceChild method on a DOM object, which triggers a null dereference, as demonstrated by calling document.replaceChild

How urgent is CVE-2006-3672?

Priority 38/100. EPSS top 6%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2009-2537 MEDIUM 4.3 MITIGATE KDE Konqueror allows remote attackers to cause a denial of service (memory consumption) via a large integer va
CVE-2008-5712 MEDIUM 5.0 DOWNGRADE The HTML parser in KDE Konqueror 3.5.9 allows remote attackers to cause a denial of service (application crash
CVE-2008-5698 MEDIUM 4.3 MITIGATE HTMLTokenizer::scriptHandler in Konqueror in KDE 3.5.9 and 3.5.10 allows remote attackers to cause a denial of
CVE-2008-4514 MEDIUM 5.0 DOWNGRADE The HTML parser in KDE Konqueror 3.5.9 allows remote attackers to cause a denial of service (application crash
CVE-2008-4382 MEDIUM 5.0 DOWNGRADE Konqueror in KDE 3.5.9 allows remote attackers to cause a denial of service (application crash) via Javascript

References

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