CVE-2006-4811

Integer overflow in Qt 3.3 before 3.3.7, 4.1 before 4.1.5, and 4.2 before 4.2.1, as used in the KDE khtml library, kdelibs 3.1.3, and possibly other packages, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted pixmap image.

Published: 2006-10-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-4811 is rated Moderate Risk (58.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.25%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2006-4811

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-07-16 4.15% 4.25% +0.11%
2 2026-06-15 17.40% 4.15% -13.26%
3 2025-07-29 — 17.40% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-4811

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2006-4811

OS Trackers for CVE-2006-4811

vendor priority summary link
alpine — CVE-2006-4811: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-4811
gentoo normal CVE-2006-4811: 2 GLSA(s) (200611-02, 200703-06), 2 atom(s) (app-emulation/emul-linux-x86-qtlibs, x11-libs/qt); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2006-4811
redhat critical — https://access.redhat.com/security/cve/CVE-2006-4811
ubuntu medium CVE-2006-4811 medium priority: Ubuntu including 2 source packages (qt-x11-free, qt4-x11), 8 status rows across 4 suites (dapper, edgy, feisty, upstream): released 6, needs-triage 2. https://ubuntu.com/security/CVE-2006-4811

Vendor comments (NVD) for CVE-2006-4811

  • Red Hat (2007-03-14T00:00:00)

    Red Hat Enterprise Linux 5 is not vulnerable to this issue as it contains a backported patch.

Affected software / configurations for CVE-2006-4811

Vendor Product Version Raw CPE
qt qt 3.3.0 cpe:2.3:a:qt:qt:3.3.0:*:*:*:*:*:*:*
qt qt 3.3.1 cpe:2.3:a:qt:qt:3.3.1:*:*:*:*:*:*:*
qt qt 3.3.2 cpe:2.3:a:qt:qt:3.3.2:*:*:*:*:*:*:*
qt qt 3.3.3 cpe:2.3:a:qt:qt:3.3.3:*:*:*:*:*:*:*
qt qt 3.3.4 cpe:2.3:a:qt:qt:3.3.4:*:*:*:*:*:*:*
qt qt 3.3.5 cpe:2.3:a:qt:qt:3.3.5:*:*:*:*:*:*:*
qt qt 3.3.6 cpe:2.3:a:qt:qt:3.3.6:*:*:*:*:*:*:*
qt qt 4.1.0 cpe:2.3:a:qt:qt:4.1.0:*:*:*:*:*:*:*
qt qt 4.1.1 cpe:2.3:a:qt:qt:4.1.1:*:*:*:*:*:*:*
qt qt 4.1.2 cpe:2.3:a:qt:qt:4.1.2:*:*:*:*:*:*:*
qt qt 4.1.3 cpe:2.3:a:qt:qt:4.1.3:*:*:*:*:*:*:*
qt qt 4.1.4 cpe:2.3:a:qt:qt:4.1.4:*:*:*:*:*:*:*
qt qt 4.2.0 cpe:2.3:a:qt:qt:4.2.0:*:*:*:*:*:*:*
redhat kdelibs 3.1.3 cpe:2.3:a:redhat:kdelibs:3.1.3:*:*:*:*:*:*:*

References for CVE-2006-4811

URL Tags
ftp://patches.sgi.com/support/free/security/advisories/20061002-01-P
ftp://patches.sgi.com/support/free/security/advisories/20061101-01-P
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=210742
http://lists.suse.com/archive/suse-security-announce/2006-Oct/0006.html
http://secunia.com/advisories/22380 Patch Vendor Advisory
http://secunia.com/advisories/22397 Vendor Advisory
http://secunia.com/advisories/22479 Patch Vendor Advisory
http://secunia.com/advisories/22485 Patch Vendor Advisory
http://secunia.com/advisories/22492 Patch Vendor Advisory
http://secunia.com/advisories/22520 Patch Vendor Advisory
http://secunia.com/advisories/22579 Vendor Advisory
http://secunia.com/advisories/22586 Vendor Advisory
http://secunia.com/advisories/22589 Vendor Advisory
http://secunia.com/advisories/22645 Vendor Advisory
http://secunia.com/advisories/22738 Vendor Advisory
http://secunia.com/advisories/22890 Vendor Advisory
http://secunia.com/advisories/22929 Vendor Advisory
http://secunia.com/advisories/24347 Vendor Advisory
http://security.gentoo.org/glsa/glsa-200611-02.xml
http://security.gentoo.org/glsa/glsa-200703-06.xml
http://securitytracker.com/id?1017084
http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.483634
http://www.mandriva.com/security/advisories?name=MDKSA-2006:186
http://www.mandriva.com/security/advisories?name=MDKSA-2006:187
http://www.redhat.com/support/errata/RHSA-2006-0720.html Patch Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2006-0725.html Vendor Advisory
http://www.securityfocus.com/archive/1/449173/100/0/threaded
http://www.securityfocus.com/bid/20599
http://www.trolltech.com/company/newsroom/announcements/press.2006-10-19.5434451733
http://www.ubuntu.com/usn/usn-368-1 Patch
http://www.us.debian.org/security/2006/dsa-1200
http://www.vupen.com/english/advisories/2006/4099 Vendor Advisory
https://issues.rpath.com/browse/RPL-723
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10218
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