Vulnerability index

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Filtering by weakness Use After FreeCWE-416 × clear
Firefox HIGH 8.8
CVE-2022-45409

The garbage collector could have been aborted in several states and zones and <code>GCRuntime::finishCollection</code> may not have been called, lead…

Fix: 102.5 / 107.0+
Fix from $1,950 2022-12-22
Firefox HIGH 7.5
CVE-2022-45407

If an attacker loaded a font using <code>FontFace()</code> on a background worker, a use-after-free could have occurred, leading to a potentially exp…

Fix: 107.0+
Fix from $1,950 2022-12-22
Firefox MEDIUM 6.5
CVE-2022-45405

Freeing arbitrary <code>nsIInputStream</code>'s on a different thread than creation could have led to a use-after-free and potentially exploitable cr…

Fix: 102.5 / 107.0+
Fix from $1,600 2022-12-22
Firefox MEDIUM 6.5
CVE-2022-40960

Concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This could lead to a use-after-free causing a potentially exploitable crash…

Fix: 102.3 / 105.0+
Fix from $1,600 2022-12-22
Firefox Esr HIGH 7.5
CVE-2022-38476

A data race could occur in the <code>PK11_ChangePW</code> function, potentially leading to a use-after-free vulnerability. In Firefox, this lock prot…

Fix: 102.2+
Fix from $1,950 2022-12-22
Firefox HIGH 8.8
CVE-2022-34484

The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10. Some of these bugs showed evidence of memory corruption and…

Fix: 91.11 / 102.0+
Fix from $1,950 2022-12-22
Firefox CRITICAL 9.8
CVE-2022-34470

Session history navigations may have led to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox < 102, Firefox ESR…

Fix: 91.11 / 102.0+
Fix from $2,300 2022-12-22
Firefox CRITICAL 9.8
CVE-2022-31747

Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox …

Fix: 91.10 / 101+
Fix from $2,300 2022-12-22
Firefox MEDIUM 6.5
CVE-2022-28282

By using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript execution a…

Fix: 91.8 / 99.0+
Fix from $1,600 2022-12-22
Firefox CRITICAL 9.6
CVE-2022-26486 KEV

An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in th…

Fix: 91.6.1 / 91.6.2+
Fix from $2,300 2022-12-22
Firefox HIGH 8.8
CVE-2022-26485 KEVEPSS 14%

Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing thi…

Fix: 91.6.1 / 91.6.2+
Fix from $1,950 2022-12-22
Firefox MEDIUM 6.5
CVE-2022-26385

In unusual circumstances, an individual thread may outlive the thread's manager during shutdown. This could have led to a use-after-free causing a po…

Fix: 98.0+
Fix from $1,600 2022-12-22
Firefox HIGH 8.8
CVE-2022-26381

An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash. This vulnerabili…

Fix: 91.7 / 98.0+
Fix from $1,950 2022-12-22
Firefox HIGH 8.8
CVE-2022-22740

Certain network request objects were freed too early when releasing a network request handle. This could have lead to a use-after-free causing a pote…

Fix: 91.5 / 96.0+
Fix from $1,950 2022-12-22
Firefox MEDIUM 6.5
CVE-2022-1097

<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leading to a use…

Fix: 91.8 / 99.0+
Fix from $1,600 2022-12-22
Firefox Esr MEDIUM 6.5
CVE-2022-1196

After a VR Process is destroyed, a reference to it may have been retained and used, leading to a use-after-free and potentially exploitable crash. Th…

Fix: 91.8+
Fix from $1,600 2022-12-22
Firefox MEDIUM 6.5
CVE-2021-4128

When transitioning in and out of fullscreen mode, a graphics object was not correctly protected; resulting in memory corruption and a potentially exp…

Fix: 95.0+
Fix from $1,600 2022-12-22
Firefox HIGH 8.8
CVE-2021-43535

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially e…

Fix: 91.3.0 / 93.0+
Fix from $1,950 2021-12-08
Firefox HIGH 8.8
CVE-2021-43539

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those liv…

Fix: 91.4.0 / 95.0+
Fix from $1,950 2021-12-08
Firefox HIGH 8.8
CVE-2021-38504

When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory co…

Fix: 91.3.0 / 94.0+
Fix from $1,950 2021-12-08
Firefox HIGH 8.8
CVE-2021-38496

During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploi…

Fix: 78.15 / 91.2+
Fix from $1,950 2021-11-03
Firefox HIGH 7.5
CVE-2021-38498

During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially …

Fix: 91.2 / 93.0+
Fix from $1,950 2021-11-03
Firefox HIGH 8.8
CVE-2021-29985

A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects …

Fix: 78.13.0 / 91.0+
Fix from $1,950 2021-08-17
Firefox HIGH 8.8
CVE-2021-29970

A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered …

Fix: 78.12 / 90.0+
Fix from $1,950 2021-08-05
Firefox HIGH 8.8
CVE-2021-29972

A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may ha…

Fix: 90.0+
Fix from $1,950 2021-08-05
Firefox CRITICAL 9.8
CVE-2020-26972

The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a d…

Fix: 84.0+
Fix from $2,300 2021-01-07
Firefox HIGH 8.8
CVE-2020-26959

During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, an…

Fix: 78.5 / 83.0+
Fix from $1,950 2020-12-09
Firefox HIGH 8.8
CVE-2020-26960

If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-…

Fix: 78.5 / 83.0+
Fix from $1,950 2020-12-09
Firefox HIGH 8.8
CVE-2020-26950EPSS 42%

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. Thi…

Fix: 78.4.1 / 78.4.2+
Fix from $1,950 2020-12-09
Firefox CRITICAL 9.8
CVE-2020-15683

Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. Some of these bugs showed evidence o…

Fix: 78.4 / 82.0+
Fix from $2,300 2020-10-22