Vendor
qt
48 known vulnerabilities.
qt at a glance
- Last 12 months
- 37
- Critical · all time
- 3
- Exploited · all time
- 0
- Public exploit · all time
- 0
Show as table
| Month | Vulnerabilities | Critical |
|---|---|---|
| Nov 2026 | 7 | 0 |
| Oct 2026 | 14 | 0 |
| Sep 2026 | 8 | 0 |
| Aug 2026 | 0 | 0 |
| Jul 2026 | 4 | 0 |
| Jun 2026 | 0 | 0 |
| May 2026 | 2 | 0 |
| Apr 2026 | 1 | 0 |
| Mar 2026 | 0 | 0 |
| Feb 2026 | 0 | 0 |
| Jan 2026 | 0 | 0 |
| Dec 2025 | 1 | 0 |
| Nov 2025 | 0 | 0 |
| Oct 2025 | 4 | 3 |
| Sep 2025 | 0 | 0 |
| Aug 2025 | 0 | 0 |
| Jul 2025 | 1 | 0 |
| Jun 2025 | 3 | 0 |
| May 2025 | 1 | 0 |
| Apr 2025 | 1 | 0 |
| Mar 2025 | 1 | 0 |
| Feb 2025 | 0 | 0 |
| Jan 2025 | 0 | 0 |
| Dec 2024 | 0 | 0 |
Most common weaknesses
Products
48 results · Feed
-
Low 0.6
Uncontrolled resource consumption vulnerability in HTTP response handling of Qt Network impacts Qt Framework
Uncontrolled resource consumption vulnerability in the Qt Framework HTTP response handling functionality of the Qt Network module.
-
Low 2.3
Information disclosure vulnerability in authentication handling of QWebSocket impacts Qt Framework
An information disclosure vulnerability in the Qt Framework QWebSocket authentication handling of the Qt WebSockets module.
-
Low 1.7
Integer truncation vulnerability in QTextCodec conversion functions impacts Qt Framework
An integer truncation vulnerability in the QTextCodec conversion functions of the Qt 5 Core Compatibility APIs module impacts the Qt Framework. An application using the affected functionality could crash.
-
Low 2.7
Resource exhaustion vulnerability in HTTP request handling impacts Qt HTTP Server (QHttpServer)
Resource exhaustion vulnerability in the HTTP request handling of the QHttpServer component of Qt HTTP Server.
-
Medium 6.7
Out-of-bounds read vulnerability in CoAP message parsing impacts Qt CoAP
An out-of-bounds read vulnerability in the Qt CoAP message parsing (QCoapInternalReply::createFromFrame()) of the Qt CoAP module. Processing a malformed CoAP message can cause an application using Qt CoAP to crash (loss of availability) or to continue operati…
-
Low 1.9
Integer overflow vulnerability in XML parsing functionality of Qt5Compat impacts Qt
An integer overflow vulnerability in the Qt XML parsing (Qt5Compat / QXmlSimpleReader) functionality of Qt.
-
Low 2.3
Memory corruption vulnerability in QMqttClient impacts Qt MQTT
A memory corruption vulnerability in the QMqttClient class of the Qt MQTT module. Under certain MQTT 5 connection settings between client and server, QMqttClient may corrupt memory, which can cause the application to crash.
-
Medium 4.3
Out-of-bounds write vulnerability in the assimp scene import plugin of Qt3D impacts Qt Framework
An out-of-bounds write vulnerability in the Qt Framework assimp scene import plugin of the Qt3D module.
-
Medium 4.3
NULL pointer dereference vulnerability in QCborValue to JSON conversion impacts Qt
A NULL pointer dereference vulnerability in the Qt QCborValue to JSON conversion of the Qt Core module.
-
Low 1.9
Out-of-bounds write vulnerability in QTextCodec iconv-based encoding impacts Qt
An out-of-bounds write vulnerability in the Qt QTextCodec iconv-based encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Under certain conditions, encoding text with QTextCodec may write outside an internal buffer. This c…
-
Medium 4.3
Out-of-bounds read vulnerability in QTextCodec TSCII encoding impacts Qt
An out-of-bounds read vulnerability in the QTextCodec TSCII encoding of the Qt 5 Compatibility APIs module (Qt Core in Qt 5 and earlier) impacts Qt. Applications that convert text to the TSCII encoding through QTextCodec may read memory outside the input buff…
-
Medium 5.3
Out-of-bounds read vulnerability in NTLM authentication handling impacts Qt
Out-of-bounds read in the QAuthenticator NTLM authentication handling in the Qt Network module in Qt Group Qt allows remote attackers to obtain sensitive information (heap memory contents) or cause a denial of service (application crash) via a crafted NTLM ch…
-
Low 2.0
Out-of-bounds read vulnerability in QCborValue::fromCbor() impacts Qt Framework
Specially crafted CBOR input passed to QCborValue::fromCbor() in Qt Core can cause an out-of-bounds read, which may crash the application and could expose information.
-
Low 2.1
Null pointer dereference vulnerability in QNetworkAccessManager impacts Qt
A malicious or compromised HTTP/2 server withholding SETTINGS ACK can send RST_STREAM on a completed stream, planting a null pointer, and then send a PUSH_PROMISE for that stream, causing a null pointer dereference in the QNetworkAccessManager class of the Qt…
-
Low 2.1
Use-after-free vulnerability in QNetworkAccessManager HTTP/2 support impacts Qt
A use-after-free vulnerability in the Qt QNetworkAccessManager HTTP/2 client support of the Qt Network module allows a malicious or compromised HTTP/2 server to cause the client application to crash, affecting availability.
-
High 8.7
Denial-of-service vulnerability in the Qt Core QXmlStream parser (QXmlStreamReader) impacts Qt
An attacker able to supply a crafted XML document to an application using QXmlStreamReader can cause disproportionate CPU consumption during parsing, making the application unresponsive (denial of service). Exploitation requires only that the application pars…
-
Medium 4.0
Null-pointer dereference in QTriangulator reachable through VectorImage
A malicious SVG can trigger an integer overflow which in turn triggers a null-pointer dereference in VectorImage QML Type.
-
Medium 4.3
QBinaryJson::fromBinaryData() integer overflow leading to OOB read
A malformed header in the binary file fed to QBinaryJson::fromBinaryData() can cause undefined behaviour because of out-of-bounds read.
-
High 7.1
Denial-of-service vulnerability in the SVG parser and renderer impacts Qt
Uncontrolled recursion in the SVG parser and renderer of the Qt SVG module (QtSvg) in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted SVG file with deeply nested elements.
-
Medium 6.5
Memory corruption (double free / use-after-free) vulnerability in core string handling impacts Qt for MCUs
A defect in the Qt for MCUs core string handling causes heap memory corruption. When an application passes text into Qt Quick Ultralite using the public Qul::String interface type, and that text is held in a std::string, the conversion to the internal string …
-
Medium 6.6
An empty <img> attribute value in styled text triggers a parser error that halts the device.
In Qt for MCUs, a Text element that displays styled text halts the device if an <img> tag in the text contains an attribute with an empty value. The text parser passes the empty value to an internal check that only accepts non-empty values. The check fails an…
-
High 8.8
Out-of-bounds read vulnerability in string formatting impacts Qt for MCUs
Strings optimized for Latin-1 displaying Latin-1 characters cause incorrect String.arg() formatting by an incorrect buffer size calculation, causing out-of-bounds reading.
-
Medium 4.5
Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module
Authentication bypass vulnerability in the password authentication mechanism of the Qt VNC Server module. An attacker using a specially modified VNC client that violates the RFB protocol can bypass Qt VNC Server's password authentication and gain unauthorized…
-
Low 2.3
Denial-of-service (stack-exhaustion) vulnerability in QXmlStreamReader::readElementText() impacts Qt
Uncontrolled recursion in QXmlStreamReader::readElementText() in Qt Group Qt allows attackers to cause a denial of service (application crash via stack exhaustion) via a crafted XML document.
-
Low 0.6
Out-of-bounds read vulnerability in Context2D.path and PathSvg.path properties impacts Qt Quick
Out-of-bounds read while parsing untrusted SVG path strings in Qt Quick's Context2D.path / PathSvg.path.
-
Medium 4.6
Out-of-bounds read (buffer over-read) vulnerability in HTTP Cache-Control response header parsing impacts Qt Framework (QtNetwork module)
Out-of-bounds read (buffer over-read) in the HTTP Cache-Control response header parsing in the QtNetwork module in Qt Group Qt 6.0.0 through 6.8.8, and 6.9.0 through 6.11.1, allows remote attackers to cause a denial of service (application crash) via an exces…
-
High 7.1
Unbounded recursion vulnerability in the QDomNode destructor of Qt XML impacts Qt
QDomDocument XML parsing is vulnerable to a remotely-triggerable denial-of-service crash when processing untrusted input.
-
Medium 6.9
Out-of-bounds read and integer underflow vulnerability in QNdefNfcTextRecord impacts Qt NFC module
An out-of-bounds read in Qt NFC's language code length parsing allows a physically proximate attacker to cause a denial of service or limited memory disclosure via a crafted NFC tag.
-
High 7.1
Uncontrolled recursion in QDomDocument/QDomNode serialization causes stack exhaustion (QtXml)
Uncontrolled recursion (CWE-674) in the QDomDocument/QDomNode serialization path of the Qt XML module (QtXml, qtbase). QDomElementPrivate::save() and QDomNodePrivate::save() recurse mutually, consuming one stack frame per level of element nesting with no dept…
-
Low 2.9
XML injection vulnerability in QDom comment, CDATA and processing-instruction serialization
Improper output neutralization (XML injection) in QDom comment, CDATA, and processing-instruction serialization in Qt XML from 4.0.0 through 6.11 allows untrusted text serialized by an application into those nodes to inject arbitrary XML markup, because the n…
-
Medium 6.3
Out-of-bounds read in QTextCodec::codecForName() in Qt
An out-of-bounds read (buffer over-read) vulnerability exists in QTextCodec::codecForName() in Qt. When the function is called with a QByteArray that is not NUL-terminated (for example, one created with QByteArray::fromRawData()), the codec-name matching rout…
-
Medium 6.8
URL Redirection to Untrusted Site ('Open Redirect') vulnerability in the Dashboard OAuth/OIDC implementation of Axivion
An Open Redirect vulnerability (CWE-601) exists in the OAuth/OIDC authentication implementation of the Axivion Dashboard. The login flow did not properly restrict the post-authentication redirect to the application's own origin, so a user who follows a crafte…
-
High 8.7
Privilege escalation via forged API token creation in Axivion Dashboard OIDC/OAuth2/SSO subsystem
The implementation of an internal and undocumented Dashboard API endpoint (POST /api/users/~/{user}/tokens) forgot to ensure an HTTP request for creating an API Token for another user had sufficient permission to do so. Precondition for successful exploitatio…
-
Low 1.8
Uncontrolled Search Path Element in Qt Network OpenSSL TLS backend allows rogue CA certificate loading
An Uncontrolled Search Path Element vulnerability in the OpenSSL TLS backend of Qt Network (qtbase) in Qt Qt Framework (Unix) allows a local attacker to load a rogue CA certificate as a trusted system authority via a crafted certificate file placed in the app…
-
High 8.7
Type confusion and heap-buffer-overflow in Qt SVG marker handling causing application crash
A type confusion vulnerability in Qt SVG allows an attacker to cause an application crash via a crafted SVG image. When processing SVG marker references, the renderer retrieves a node by its id attribute and casts it to QSvgMarker* without verifying the node …
-
High 7.4
Possible QML code injection in VectorImage component
Insufficient validation of node IDs in Qt SVG module allows arbitrary QML/JavaScript code injection when loading malicious SVG files through the VectorImage component in Qt Quick. While QML execution is typically more restricted than native code execution, th…
-
High 8.7
Improper validation of <img> tag size in Text component parser
Allocation of Resources Without Limits or Throttling, Improper Validation of Specified Quantity in Input vulnerability in The Qt Company Qt on Windows, MacOS, Linux, iOS, Android, x86, ARM, 64 bit, 32 bit allows Excessive Allocation. This issue affects users …
-
Low 3.1
QLowEnergyController in Qt before 6.8.2 mishandles malformed Bluetooth ATT commands, leading to an out-of-bounds read (…
-
Critical 9.2
Possible denial of service with multiple incoming connections to a Schannel based server with a TLS backend
There is an incomplete cleanup vulnerability in Qt Network's Schannel support on Windows which can lead to a Denial of Service over a long period. This issue affects Qt from 5.15.0 through 6.8.3, from 6.9.0 before 6.9.2.
-
Critical 9.4
Use-after-free vulnerability in Qt SVG qsvghandler.cpp allows denial of service via crafted SVG
The module will parse a <pattern> node which is not a child of a structural node. The node will be deleted after creation but might be accessed later leading to a use after free.