Qt vulnerabilitiesNone on the known-exploited list.
Qt has 62 published vulnerabilities across 5 products in our catalogue. None of them is on the list of flaws known to be exploited today. The most affected product is Qt, with 58. If you run Qt software, patch the exploited flaws first.
We keep watching the known-exploited list.
Which Qt products have the most vulnerabilities?
Qt leads with 58 published vulnerabilities. Open a product to see its versions and which of its flaws criminals are already using.
Which Qt vulnerabilities are being exploited?
This is the list that matters most: flaws criminals are using now.
None of Qt's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.
Which Qt flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 11%CVE-2010-2621Medium
The QSslSocketBackendPrivate::transmit function in src_network_ssl_qsslsocket_openssl.cpp in Qt 4.6.3 and earlier allows remote attackers to cause a denial of service (infinite loop) via a malformed request.
- 8.7%CVE-2015-1860Medium
Multiple buffer overflows in gui/image/qgifhandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow remote attackers to cause a denial of service (segmentation fault) and possibly execute...
- 7.3%CVE-2011-3193Critical
Heap-based buffer overflow in the Lookup_MarkMarkPos function in the HarfBuzz module (harfbuzz-gpos.c), as used by Qt before 4.7.4 and Pango, allows remote attackers to cause a denial of service (crash) and possibly...
- 7.2%CVE-2015-1858Medium
Multiple buffer overflows in gui/image/qbmphandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow remote attackers to cause a denial of service (segmentation fault and crash) and possibly...
- 7.1%CVE-2015-1859Medium
Multiple buffer overflows in plugins/imageformats/ico/qicohandler.cpp in the QtBase module in Qt before 4.8.7 and 5.x before 5.4.2 allow remote attackers to cause a denial of service (segmentation fault and crash)...
- 7.0%CVE-2011-3194Critical
Buffer 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) and possibly execute arbitrary code via the TIFFTAG_SAMPLESPERPIXEL tag in a...
- 4.5%CVE-2006-4811Medium
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...
- 4.0%CVE-2020-17507Medium
An issue was discovered in Qt through 5.12.9, and 5.13.x through 5.15.x before 5.15.1.
- 4.0%CVE-2014-0190Medium
The GIF decoder in QtGui in Qt before 5.3 allows remote attackers to cause a denial of service (NULL pointer dereference) via invalid width and height values in a GIF image.
- 3.4%CVE-2018-19873Critical
An issue was discovered in Qt before 5.11.3.
All Qt products we track.
4 products, most vulnerabilities first. Find the ones you run, then open a product to see its versions and exploited flaws.
- Qtqt58 vulnerabilities221 versions
- Qtbaseqtbase1 vulnerability47 versions
- Qtwebkitqtwebkit1 vulnerability16 versions
- Qxmlsimplereaderqxmlsimplereader1 vulnerability1 version
This directory lists the 4 Qt products with at least one tracked version, of 5 in our catalogue.
Running Qt? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
Free plan, no card needed. Nothing to install.
1 new flaw affects software Acme tracks
The QSslSocketBackendPrivate::transmit function in src_network_ssl_qsslsocket_openssl.cpp in Qt 4.6.3 and earlier allows remote attackers to cause a denial of service (infinite loop) via a malformed request.
- Matched to
- Qt on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
Our catalogue lists 62 published vulnerabilities across 5 products and 285 versions from Qt.
None of Qt's vulnerabilities is on the list of flaws known to be exploited today.
Qt, with 58 published vulnerabilities. Its own page lists the ones known to be exploited.
Create a Precursor Intelligence account and track the Qt products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook.