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CVE-2006-4811· NVD / CVE Program· CNA redhat

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 possib

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 4.5% (FIRST EPSS); higher than 91.3% of all records.
  • Fixed version: qt-x11-free (Debian:3.1) 3:3.3.4-3sarge1; arts (Red Hat:enterprise_linux:2.1::as) 6:2.2.2-21.EL2; kdelibs (Red Hat:enterprise_linux:2.1::as) 6:2.2.2-21.EL2.

Low priority for now. Upgrade to qt-x11-free (Debian:3.1) 3:3.3.4-3sarge1; arts (Red Hat:enterprise_linux:2.1::as) 6:2.2.2-21.EL2; kdelibs (Red Hat:enterprise_linux:2.1::as) 6:2.2.2-21.EL2 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

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.

MediumCVSS 6.8 · v2.0—No exploit Fix available
Published
Oct 18, 2006
Updated
Jun 16, 2026
EPSS
4.5% · 91th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
27 / 40 · 6.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 4.5%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
qtqt
redhatkdelibs

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • qt qt3.3.0
  • qt qt3.3.1
  • qt qt3.3.2
  • qt qt3.3.3
  • qt qt3.3.4
  • qt qt3.3.5
  • qt qt3.3.6
  • qt qt4.1.0
  • qt qt4.1.1
  • qt qt4.1.2
  • qt qt4.1.3
  • qt qt4.1.4
  • qt qt4.2.0
  • redhat kdelibs3.1.3

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:3.1qt-x11-freebefore 3:3.3.4-3sarge13:3.3.4-3sarge1
Red Hat:enterprise_linux:2.1::asartsbefore 6:2.2.2-21.EL26:2.2.2-21.EL2
Red Hat:enterprise_linux:2.1::askdelibsbefore 6:2.2.2-21.EL26:2.2.2-21.EL2
Red Hat:enterprise_linux:2.1::askdelibs-develbefore 6:2.2.2-21.EL26:2.2.2-21.EL2
Red Hat:enterprise_linux:2.1::askdelibs-soundbefore 6:2.2.2-21.EL26:2.2.2-21.EL2
Red Hat:enterprise_linux:2.1::askdelibs-sound-develbefore 6:2.2.2-21.EL26:2.2.2-21.EL2
Red Hat:enterprise_linux:2.1::asqtbefore 1:2.3.1-12.EL21:2.3.1-12.EL2
Red Hat:enterprise_linux:2.1::asqt-designerbefore 1:2.3.1-12.EL21:2.3.1-12.EL2
Red Hat:enterprise_linux:2.1::asqt-develbefore 1:2.3.1-12.EL21:2.3.1-12.EL2
Red Hat:enterprise_linux:2.1::asqt-staticbefore 1:2.3.1-12.EL21:2.3.1-12.EL2
Red Hat:enterprise_linux:2.1::asqt-Xtbefore 1:2.3.1-12.EL21:2.3.1-12.EL2
Red Hat:enterprise_linux:3::askdelibsbefore 6:3.1.3-6.126:3.1.3-6.12
Red Hat:enterprise_linux:3::askdelibs-debuginfobefore 6:3.1.3-6.126:3.1.3-6.12
Red Hat:enterprise_linux:3::askdelibs-develbefore 6:3.1.3-6.126:3.1.3-6.12
Red Hat:enterprise_linux:3::asqtbefore 1:3.1.2-14.RHEL31:3.1.2-14.RHEL3
Red Hat:enterprise_linux:3::asqt-configbefore 1:3.1.2-14.RHEL31:3.1.2-14.RHEL3
Red Hat:enterprise_linux:3::asqt-debuginfobefore 1:3.1.2-14.RHEL31:3.1.2-14.RHEL3
Red Hat:enterprise_linux:3::asqt-designerbefore 1:3.1.2-14.RHEL31:3.1.2-14.RHEL3
Red Hat:enterprise_linux:3::asqt-develbefore 1:3.1.2-14.RHEL31:3.1.2-14.RHEL3
Red Hat:enterprise_linux:3::asqt-MySQLbefore 1:3.1.2-14.RHEL31:3.1.2-14.RHEL3
Red Hat:enterprise_linux:3::asqt-ODBCbefore 1:3.1.2-14.RHEL31:3.1.2-14.RHEL3
Red Hat:enterprise_linux:4::askdelibsbefore 6:3.3.1-6.RHEL46:3.3.1-6.RHEL4
Red Hat:enterprise_linux:4::askdelibs-debuginfobefore 6:3.3.1-6.RHEL46:3.3.1-6.RHEL4
Red Hat:enterprise_linux:4::askdelibs-develbefore 6:3.3.1-6.RHEL46:3.3.1-6.RHEL4

+8

Same product

qt: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-12267setMarkdown in Qt before 5.14.2 has a use-after-free related to QTextMarkdownImporter::insertBlock.
    40Plan
  • CVE-2018-19873An issue was discovered in Qt before 5.11.3.
    40Plan
  • CVE-2017-10904Qt for Android prior to 5.9.0 allows remote attackers to execute arbitrary OS commands via unspecified vectors.
    40Plan
  • CVE-2024-36048QAbstractOAuth in Qt Network Authorization in Qt before 5.15.17, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.6, and 6.6.x through 6.7.
    39Monitor
  • CVE-2023-51714An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before 6.2.11, 6.3.x through 6.5.x before 6.5.4, and 6.6.x bef
    39Monitor
  • CVE-2011-3194Buffer overflow in the TIFF reader in gui/image/qtiffhandler.cpp in Qt 4.7.4 allows remote attackers to cause a denial of service (crash) an
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:qt-x11-free3:3.3.4-3sarge1 · Debian:3.1Package registry (OSV)
red hat:arts6:2.2.2-21.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:kdelibs6:2.2.2-21.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:kdelibs-debuginfo6:3.1.3-6.12 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:kdelibs-devel6:2.2.2-21.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:kdelibs-sound6:2.2.2-21.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:kdelibs-sound-devel6:2.2.2-21.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:qt1:2.3.1-12.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:qt-designer1:2.3.1-12.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:qt-devel1:2.3.1-12.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:qt-MySQL1:3.1.2-14.RHEL3 · Red Hat:enterprise_linux:3::asPackage registry (OSV)
red hat:qt-static1:2.3.1-12.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)
red hat:qt-Xt1:2.3.1-12.EL2 · Red Hat:enterprise_linux:2.1::asPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

    If successful

    Confidentiality
    P · data can be read
    Integrity
    P · data or configuration can be modified
    Availability
    P · the service can be disrupted
    Attack complexity
    M
    Confidentiality impact
    P
    Integrity impact
    P
    Availability impact
    P

    Weakness class (CWE)

    CWE-189 · Numeric Errors

    CVSS vector

    AV:N/AC:M/Au:N/C:P/I:P/A:P

    nvd-primary

    Attack context

    MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

    MITRE has no CAPEC/ATT&CK mapping for this CWE.

    Change log

    1. Fix✗ → ✓

    For records you follow, these changes also arrive as notifications. →

    References

    Show all references (19 more)

    Vendor advisories and official records. Exploit/PoC links are deliberately left out.

    All records