CVE-2007-4137
HIGH · CVSS 7.5EPSS 2.3%EU EUVD
Off-by-one error in the QUtf8Decoder::toUnicode function in Trolltech Qt 3 allows context-dependent attackers to cause a denial of service (crash) via a crafted Unicode string that triggers a heap-based buffer overflow. NOTE: Qt 4 has the same error in the QUtf8Codec::convertToUnicode function, but it is not exploitable.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-119
- EPSS score
- 2.3% (84th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-4121)
- Published
- September 18, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-4121 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- conectiva / linux
- conectiva / linux
- gentoo / linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux
- mandrakesoft / mandrake linux corporate server
- mandrakesoft / mandrake linux corporate server
- mandrakesoft / mandrake linux corporate server
- mandrakesoft / mandrake linux corporate server
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / linux
- redhat / linux
- redhat / linux
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
- trolltech / qt
and 15 more…
References
- ftp://patches.sgi.com/support/free/security/advisories/20070901-01-P.asc
- http://bugs.gentoo.org/show_bug.cgi?id=192472
- http://dist.trolltech.com/developer/download/175791_3.diff
- http://dist.trolltech.com/developer/download/175791_4.diff
- http://fedoranews.org/updates/FEDORA-2007-221.shtml
- http://fedoranews.org/updates/FEDORA-2007-703.shtml
- http://osvdb.org/39384
- http://secunia.com/advisories/26778(Vendor Advisory)
- http://secunia.com/advisories/26782(Vendor Advisory)
- http://secunia.com/advisories/26804
- http://secunia.com/advisories/26811(Vendor Advisory)
- http://secunia.com/advisories/26857
- http://secunia.com/advisories/26868
- http://secunia.com/advisories/26882
- http://secunia.com/advisories/26987
- http://secunia.com/advisories/27053
- http://secunia.com/advisories/27275
- http://secunia.com/advisories/27382
- http://secunia.com/advisories/27996
- http://secunia.com/advisories/28021
- http://security.gentoo.org/glsa/glsa-200710-28.xml
- http://security.gentoo.org/glsa/glsa-200712-08.xml
- http://securitytracker.com/id?1018688
- http://support.avaya.com/elmodocs2/security/ASA-2007-424.htm
- http://trolltech.com/company/newsroom/announcements/press.2007-09-03.7564032119
- http://www.debian.org/security/2007/dsa-1426
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:183
- http://www.novell.com/linux/security/advisories/2007_19_sr.html
- http://www.redhat.com/support/errata/RHSA-2007-0883.html
- http://www.securityfocus.com/archive/1/481498/100/0/threaded
- http://www.securityfocus.com/bid/25657
- http://www.ubuntu.com/usn/usn-513-1
- http://www.vupen.com/english/advisories/2007/3144
- https://bugzilla.redhat.com/show_bug.cgi?id=269001
- https://issues.rpath.com/browse/RPL-1751
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11159
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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