CVE-2008-5698: HTMLTokenizer::scriptHandler in Konqueror in KDE 3.5.9 and 3.5.10 allows remote attackers to cause a denial of

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MEDIUM 4.3MITIGATE

CVE-2008-5698 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.

HTMLTokenizer::scriptHandler in Konqueror in KDE 3.5.9 and 3.5.10 allows remote attackers to cause a denial of service (application crash) via an invalid document.load call that triggers use of a deleted object. NOTE: some of these details are obtained from third party information.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	3.5% (top 11%)
CISA exploited list	No
Weakness	CWE-399
Published	2008-12-22
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

2008-12-22 15:30 UTCPublished CVE record published
2026-06-16 23:00 UTCUpdated Record last modified

kde konqueror MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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: Konqueror 3.5.9 - 'load' Remote Crash

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-2008-5698?

konqueror: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-5698 being exploited?

CVE-2008-5698 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-2008-5698 affect?

CVE-2008-5698 affects konqueror. Severity is medium (CVSS 4.3). HTMLTokenizer::scriptHandler in Konqueror in KDE 3.5.9 and 3.5.10 allows remote attackers to cause a denial of service (application crash) via an invalid document.load call that triggers use of a deleted object. NOTE: some of these details

How urgent is CVE-2008-5698?

Priority 42/100. 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-2008-4514 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
CVE-2007-6591 MEDIUM 4.3 DOWNGRADE KDE Konqueror 3.5.5 and 3.95.00, when a user accepts an SSL server certificate on the basis of the CN domain n

References

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