On Android systems, Firefox can load a library from APITRACE_LIB, which is writable by all users and applications. This could allow malicious third party applications to execute a man-in-the-middle attack if a malicious code was written to that location and loaded. Note: This issue only affects...
7.4CVSS
7.8AI Score
0.001EPSS
Cross-origin images can be read in violation of the same-origin policy by exporting an image after using createImageBitmap to read the image and then rendering the resulting bitmap image within a canvas element. This vulnerability affects Firefox <...
5.3CVSS
6.4AI Score
0.005EPSS
Firefox will accept any registered Program ID as an external protocol handler and offer to launch this local application when given a matching URL on Windows operating systems. This should only happen if the program has specifically registered itself as a "URL Handler" in the Windows registry....
5.3CVSS
6AI Score
0.002EPSS
In Firefox Developer Tools it is possible that pasting the result of the 'Copy as cURL' command into a command shell on macOS will cause the execution of unintended additional bash script commands if the URL was maliciously crafted. This is the result of an issue with the native version of Bash on....
9.8CVSS
8.9AI Score
0.004EPSS
A vulnerability exists during authorization prompting for FTP transaction where successive modal prompts are displayed and cannot be immediately dismissed. This allows for a denial of service (DOS) attack. This vulnerability affects Firefox <...
7.5CVSS
7.5AI Score
0.001EPSS
Incorrect handling of proto mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird <...
8.8CVSS
8.2AI Score
0.561EPSS
A vulnerability was discovered where specific command line arguments are not properly discarded during Firefox invocation as a shell handler for URLs. This could be used to retrieve and execute files whose location is supplied through these command line arguments if Firefox is configured as the...
9.8CVSS
8.9AI Score
0.004EPSS
Unsanitized output in the browser UI leaves HTML tags in place and can result in arbitrary code execution in Firefox before version...
6.1CVSS
6.5AI Score
0.001EPSS
A service worker can send the activate event on itself periodically which allows it to run perpetually, allowing it to monitor activity by users. Affects all versions prior to Firefox...
7.5CVSS
8AI Score
0.002EPSS
Use of uninitialized memory in Graphite2 library in Firefox before 54 in graphite2::GlyphCache::Loader::read_glyph...
8.8CVSS
9.2AI Score
0.003EPSS
8.1CVSS
8.8AI Score
0.003EPSS
Out-of-bounds read in Graphite2 Library in Firefox before 54 in graphite2::Silf::readGraphite...
9.1CVSS
9.3AI Score
0.005EPSS
Out-of-bounds read in Graphite2 Library in Firefox before 54 in graphite2::Pass::readPass...
8.1CVSS
8.8AI Score
0.003EPSS
Heap-based Buffer Overflow write in Graphite2 library in Firefox before 54 in lz4::decompress...
8.8CVSS
9.2AI Score
0.003EPSS
Heap-based Buffer Overflow in Graphite2 library in Firefox before 54 in lz4::decompress...
8.8CVSS
9.2AI Score
0.003EPSS
A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This...
7.1CVSS
7AI Score
0.001EPSS
If a site is loaded over a HTTPS connection but loads a favicon resource over HTTP, the mixed content warning is not displayed to users. This vulnerability affects Firefox <...
5.3CVSS
6.1AI Score
0.008EPSS
By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject stylesheets and bypass Content Security Policy (CSP). This vulnerability affects Firefox <...
6.5CVSS
6.9AI Score
0.005EPSS
Mozilla developers and community members reported memory safety bugs present in Firefox 63. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox <...
8.8CVSS
9.4AI Score
0.005EPSS
When a new protocol handler is registered, the API accepts a title argument which can be used to mislead users about which domain is registering the new protocol. This may result in the user approving a protocol handler that they otherwise would not have. This vulnerability affects Firefox <...
4.3CVSS
5.6AI Score
0.006EPSS
By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox <...
7.5CVSS
7.6AI Score
0.016EPSS
The internal WebBrowserPersist code does not use correct origin context for a resource being saved. This manifests when sub-resources are loaded as part of "Save Page As..." functionality. For example, a malicious page could recover a visitor's Windows username and NTLM hash by including resources....
6.5CVSS
7AI Score
0.008EPSS
When the RSS Feed preview about:feeds page is framed within another page, it can be used in concert with scripted content for a clickjacking attack that confuses users into downloading and executing an executable file from a temporary directory. Note: This issue only affects Windows operating...
8.8CVSS
8.5AI Score
0.003EPSS
A use-after-free vulnerability can occur after deleting a selection element due to a weak reference to the select element in the options collection. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox <...
9.8CVSS
9.1AI Score
0.006EPSS
A same-origin policy violation allowing the theft of cross-origin URL entries when using a meta http-equiv="refresh" on a page to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects...
6.5CVSS
6.5AI Score
0.002EPSS
Limitations on the URIs allowed to WebExtensions by the browser.windows.create API can be bypassed when a pipe in the URL field is used within the extension to load multiple pages as a single argument. This could allow a malicious WebExtension to open privileged about: or file: locations. This...
6.5CVSS
6.7AI Score
0.003EPSS
A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < ...
9.8CVSS
9.2AI Score
0.009EPSS
A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox <...
9.8CVSS
9.1AI Score
0.009EPSS
A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. Note: 64-bit builds are not...
7.5CVSS
7.8AI Score
0.009EPSS
Mozilla developers and community members reported memory safety bugs present in Firefox 62 and Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects...
9.8CVSS
9.7AI Score
0.011EPSS
Mozilla developers and community members reported memory safety bugs present in Firefox 62. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox <...
8.8CVSS
9.3AI Score
0.007EPSS
Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR <.....
8.8CVSS
9.5AI Score
0.01EPSS
WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions......
6.5CVSS
7AI Score
0.003EPSS
A buffer overflow occurs when drawing and validating elements with the ANGLE graphics library, used for WebGL content, when working with the VertexBuffer11 module. This results in a potentially exploitable crash. This vulnerability affects Firefox <...
9.8CVSS
9AI Score
0.009EPSS
When manipulating user events in nested loops while opening a document through script, it is possible to trigger a potentially exploitable crash due to poor event handling. This vulnerability affects Firefox < 63, Firefox ESR < 60.3, and Thunderbird <...
9.8CVSS
8.8AI Score
0.004EPSS
During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. Because the problem is in the underlying Android service, this issue is addressed by treating all HLS streams as cross-origin and opaque to access. Note: this issue....
8.8CVSS
8.2AI Score
0.009EPSS
A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascript location property to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects...
6.5CVSS
6.9AI Score
0.002EPSS
Some special resource URIs will cause a non-exploitable crash if loaded with optional parameters following a '?' in the parsed string. This could lead to denial of service (DOS) attacks. This vulnerability affects Firefox <...
7.5CVSS
7.4AI Score
0.012EPSS
In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as they are in non-private mode. This allows information leakage of sites visited during private browsing sessions. Note: this issue only affects Firefox for Android. Desktop versions of Firefox are...
5.3CVSS
6.3AI Score
0.006EPSS
A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox...
6.5CVSS
7.1AI Score
0.032EPSS
Mozilla developers and community members reported memory safety bugs present in Firefox 63 and Firefox ESR 60.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects...
9.8CVSS
9.8AI Score
0.005EPSS
In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, Absence of length sanity check may lead to possible stack overflow resulting in memory corruption in trustzone...
7.8CVSS
9.4AI Score
0.0004EPSS
In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, Uninitialized data for socket address leads to information...
5.5CVSS
8.9AI Score
0.0004EPSS
In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, Out of bound mask range access caused by using possible old value of msg mask table count while copying masks to...
7.8CVSS
9.1AI Score
0.0004EPSS
In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, Use-after-free issue in heap while loading audio effects config in audio effects...
7.8CVSS
7.5AI Score
0.0004EPSS
In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, Heap memory was accessed after it was...
7.8CVSS
7.4AI Score
0.0004EPSS
In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, Users with no extra privileges can potentially access leaked data due to uninitialized padding present in display...
5.5CVSS
9.1AI Score
0.0004EPSS
In all android releases(Android for MSM, Firefox OS for MSM, QRD Android) from CAF using the linux kernel, Null pointer dereference vulnerability may occur due to missing NULL assignment in NAT module of freed...
7.8CVSS
7.3AI Score
0.0004EPSS
Mozilla developers and community members reported memory safety bugs present in Firefox 64 and Firefox ESR 60.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects...
9.8CVSS
9.8AI Score
0.013EPSS
When proxy auto-detection is enabled, if a web server serves a Proxy Auto-Configuration (PAC) file or if a PAC file is loaded locally, this PAC file can specify that requests to the localhost are to be sent through the proxy to another server. This behavior is disallowed by default when a proxy is....
5.9CVSS
6.7AI Score
0.003EPSS