CVE-2007-4229: Unspecified vulnerability in KDE Konqueror 3.5.7 and earlier allows remote attackers to cause a denial of serv

Q: How do I fix CVE-2007-4229?

konqueror: upgrade to newer than 3.5.7. Exact commands for each OS are on this page.

Q: Is CVE-2007-4229 being exploited?

CVE-2007-4229 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-2007-4229 affect?

CVE-2007-4229 affects konqueror. Severity is medium (CVSS 4.3). Unspecified vulnerability in KDE Konqueror 3.5.7 and earlier allows remote attackers to cause a denial of service (failed assertion and application crash) via certain malformed HTML, as demonstrated by a document containing TEXTAREA, BUTTON

Q: How urgent is CVE-2007-4229?

Priority 41/100. Public exploit reference

This month

MEDIUM 4.3UPGRADE

CVE-2007-4229 is a medium-severity flaw (CVSS 4.3) affecting konqueror. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in KDE Konqueror 3.5.7 and earlier allows remote attackers to cause a denial of service (failed assertion and application crash) via certain malformed HTML, as demonstrated by a document containing TEXTAREA, BUTTON, BR, BDO, PRE, FRAMESET, and A tags. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Published	2007-08-08
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

2007-08-08 22:17 UTCPublished CVE record published
2026-06-16 22:43 UTCUpdated Record last modified

kde konqueror UPGRADE

Affected: <= 3.5.7

Fixed in: newer than 3.5.7

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 3.5.7 (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 3.5.7 - Assert 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-2007-4229?

konqueror: upgrade to newer than 3.5.7. Exact commands for each OS are on this page.

Is CVE-2007-4229 being exploited?

CVE-2007-4229 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-2007-4229 affect?

CVE-2007-4229 affects konqueror. Severity is medium (CVSS 4.3). Unspecified vulnerability in KDE Konqueror 3.5.7 and earlier allows remote attackers to cause a denial of service (failed assertion and application crash) via certain malformed HTML, as demonstrated by a document containing TEXTAREA, BUTTON

How urgent is CVE-2007-4229?

Priority 41/100. 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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