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    CVE-2007-0242

    The UTF-8 decoder in codecs/qutfcodec.cpp in Qt 3.3.8 and 4.2.3 does not reject long UTF-8 sequences as required by the standard, which allows remote attackers to conduct cross-site scripting (XSS) and directory traversal attacks via long sequences that decode to dangerous metacharacters.

    Published:Mar 29, 2007
    Last Modified:Apr 23, 2026
    EPS:Apr 3, 2007
    EPSS Score:0.01675
    CVSS Score:4.3

    Affected Products

    Vendor
    Qt
    Product
    Qt
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-13326 (CVSS 6.9) — An out-of-bounds read in Qt NFC's language code length parsing allows a physically proximate attacker to cause…
    CVE-2026-11573 (CVSS 7.1) — Uncontrolled recursion in Qt's QDomDocument serialization (QtXml) lets deeply nested untrusted XML crash the a…
    CVE-2026-15037 (CVSS 2.9) — Improper output neutralization (XML injection) in QDom comment, CDATA, and processing-instruction serializatio…
    CVE-2026-9499 (CVSS 6.3) — An out-of-bounds read (buffer over-read) vulnerability exists in QTextCodec::codecForName() in Qt. When the fu…
    CVE-2025-14575 (CVSS 1.8) — An Uncontrolled Search Path Element vulnerability in the OpenSSL TLS backend of Qt Network (qtbase) in Qt Qt F…
    CVE-2026-6210 (CVSS 8.7) — A type confusion vulnerability in Qt SVG allows an attacker to cause an application crash via a crafted SVG im…
    CVE-2025-14576 (CVSS 7.4) — Insufficient validation of node IDs in Qt SVG module allows arbitrary QML/JavaScript code injection when loadi…
    CVE-2025-12385 (CVSS 8.7) — Allocation of Resources Without Limits or Throttling, Improper Validation of Specified Quantity in Input vulne…
    CVE-2025-23050 (CVSS 3.1) — QLowEnergyController in Qt before 6.8.2 mishandles malformed Bluetooth ATT commands, leading to an out-of-boun…
    CVE-2025-6338 (CVSS 9.2) — There is an incomplete cleanup vulnerability in Qt Network's Schannel support on Windows which can lead to a D…

    References

    ftp://patches.sgi.com/support/free/security/advisories/20070901-01-P.asc
    http://fedoranews.org/updates/FEDORA-2007-703.shtml
    http://rhn.redhat.com/errata/RHSA-2011-1324.html
    http://secunia.com/advisories/24699
    http://secunia.com/advisories/24705
    http://secunia.com/advisories/24726
    http://secunia.com/advisories/24727
    http://secunia.com/advisories/24759
    http://secunia.com/advisories/24797
    http://secunia.com/advisories/24847
    http://secunia.com/advisories/24889
    http://secunia.com/advisories/25263
    http://secunia.com/advisories/26804
    http://secunia.com/advisories/26857
    http://secunia.com/advisories/27108
    http://secunia.com/advisories/27275
    http://secunia.com/advisories/46117
    http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.348591
    http://support.avaya.com/elmodocs2/security/ASA-2007-424.htm
    http://support.novell.com/techcenter/psdb/39ea4b325a7da742cb8b6995fa585b14.html
    http://support.novell.com/techcenter/psdb/fc79b7f48d739f9c803a24ddad933384.html
    http://www.debian.org/security/2007/dsa-1292
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:074
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:075
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:076
    http://www.nabble.com/Bug-417390:-CVE-2007-0242%2C--Qt-UTF-8-overlong-sequence-decoding-vulnerability-t3506065.html
    http://www.novell.com/linux/security/advisories/2007_6_sr.html
    http://www.redhat.com/support/errata/RHSA-2007-0883.html
    http://www.redhat.com/support/errata/RHSA-2007-0909.html
    http://www.securityfocus.com/bid/23269
    http://www.trolltech.com/company/newsroom/announcements/press.2007-03-30.9172215350
    http://www.ubuntu.com/usn/usn-452-1
    http://www.vupen.com/english/advisories/2007/1212
    https://exchange.xforce.ibmcloud.com/vulnerabilities/33397
    https://issues.rpath.com/browse/RPL-1202
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11510
    ftp://patches.sgi.com/support/free/security/advisories/20070901-01-P.asc
    http://fedoranews.org/updates/FEDORA-2007-703.shtml
    http://rhn.redhat.com/errata/RHSA-2011-1324.html
    http://secunia.com/advisories/24699
    http://secunia.com/advisories/24705
    http://secunia.com/advisories/24726
    http://secunia.com/advisories/24727
    http://secunia.com/advisories/24759
    http://secunia.com/advisories/24797
    http://secunia.com/advisories/24847
    http://secunia.com/advisories/24889
    http://secunia.com/advisories/25263
    http://secunia.com/advisories/26804
    http://secunia.com/advisories/26857
    http://secunia.com/advisories/27108
    http://secunia.com/advisories/27275
    http://secunia.com/advisories/46117
    http://slackware.com/security/viewer.php?l=slackware-security&y=2007&m=slackware-security.348591
    http://support.avaya.com/elmodocs2/security/ASA-2007-424.htm
    http://support.novell.com/techcenter/psdb/39ea4b325a7da742cb8b6995fa585b14.html
    http://support.novell.com/techcenter/psdb/fc79b7f48d739f9c803a24ddad933384.html
    http://www.debian.org/security/2007/dsa-1292
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:074
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:075
    http://www.mandriva.com/security/advisories?name=MDKSA-2007:076
    http://www.nabble.com/Bug-417390:-CVE-2007-0242%2C--Qt-UTF-8-overlong-sequence-decoding-vulnerability-t3506065.html
    http://www.novell.com/linux/security/advisories/2007_6_sr.html
    http://www.redhat.com/support/errata/RHSA-2007-0883.html
    http://www.redhat.com/support/errata/RHSA-2007-0909.html
    http://www.securityfocus.com/bid/23269
    http://www.trolltech.com/company/newsroom/announcements/press.2007-03-30.9172215350
    http://www.ubuntu.com/usn/usn-452-1
    http://www.vupen.com/english/advisories/2007/1212
    https://exchange.xforce.ibmcloud.com/vulnerabilities/33397
    https://issues.rpath.com/browse/RPL-1202
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11510

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High