# |
CVE ID
|
CWE ID
|
# of Exploits
|
Vulnerability Type(s)
|
Publish Date
|
Update Date
|
Score
|
Gained Access Level
|
Access
|
Complexity
|
Authentication
|
Conf.
|
Integ.
|
Avail.
|
1 |
CVE-2021-43539 |
416 |
|
|
2021-12-08 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. |
2 |
CVE-2021-43537 |
704 |
|
|
2021-12-08 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. |
3 |
CVE-2021-43535 |
416 |
|
Mem. Corr. |
2021-12-08 |
2022-03-17 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
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 exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3. |
4 |
CVE-2021-43534 |
787 |
|
Mem. Corr. |
2021-12-08 |
2022-03-17 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. |
5 |
CVE-2021-38504 |
416 |
|
Mem. Corr. |
2021-12-08 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3. |
6 |
CVE-2021-38501 |
|
|
Mem. Corr. |
2021-11-03 |
2021-11-04 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 93, Thunderbird < 91.2, and Firefox ESR < 91.2. |
7 |
CVE-2021-38500 |
|
|
Mem. Corr. |
2021-11-03 |
2022-03-17 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. |
8 |
CVE-2021-38499 |
787 |
|
Mem. Corr. |
2021-11-03 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 92. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 93. |
9 |
CVE-2021-38496 |
416 |
|
Mem. Corr. |
2021-11-03 |
2022-03-17 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93. |
10 |
CVE-2021-38494 |
787 |
|
Mem. Corr. |
2021-11-03 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 91. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 92. |
11 |
CVE-2021-38493 |
787 |
|
Mem. Corr. |
2021-11-03 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92. |
12 |
CVE-2021-30547 |
787 |
|
|
2021-06-15 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. |
13 |
CVE-2021-29990 |
787 |
|
Mem. Corr. |
2021-08-17 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers and community members reported memory safety bugs present in Firefox 90. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 91. |
14 |
CVE-2021-29989 |
787 |
|
Mem. Corr. |
2021-08-17 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.13, Firefox ESR < 78.13, and Firefox < 91. |
15 |
CVE-2021-29988 |
125 |
|
Mem. Corr. |
2021-08-17 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. |
16 |
CVE-2021-29985 |
416 |
|
Mem. Corr. |
2021-08-17 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. |
17 |
CVE-2021-29984 |
787 |
|
Mem. Corr. |
2021-08-17 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. |
18 |
CVE-2021-29981 |
|
|
|
2021-08-17 |
2022-03-16 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91. |
19 |
CVE-2021-29980 |
909 |
|
Mem. Corr. |
2021-08-17 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. |
20 |
CVE-2021-29977 |
787 |
|
Mem. Corr. |
2021-08-05 |
2022-03-16 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 89. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 90. |
21 |
CVE-2021-29976 |
787 |
|
Mem. Corr. |
2021-08-05 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90. |
22 |
CVE-2021-29973 |
|
|
|
2021-08-05 |
2021-08-12 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Password autofill was enabled without user interaction on insecure websites on Firefox for Android. This was corrected to require user interaction with the page before a user's password would be entered by the browser's autofill functionality *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 90. |
23 |
CVE-2021-29972 |
416 |
|
|
2021-08-05 |
2022-03-25 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
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 have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90. |
24 |
CVE-2021-29967 |
787 |
|
Mem. Corr. |
2021-06-24 |
2022-12-09 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 88 and Firefox ESR 78.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.11, Firefox < 89, and Firefox ESR < 78.11. |
25 |
CVE-2021-29966 |
787 |
|
Mem. Corr. |
2021-06-24 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 88. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 89. |
26 |
CVE-2021-29947 |
787 |
|
Mem. Corr. |
2021-06-24 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers and community members reported memory safety bugs present in Firefox 87. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88. |
27 |
CVE-2021-29946 |
190 |
|
Overflow Bypass |
2021-06-24 |
2021-06-25 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. |
28 |
CVE-2021-24002 |
88 |
|
|
2021-06-24 |
2021-07-02 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
When a user clicked on an FTP URL containing encoded newline characters (%0A and %0D), the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. |
29 |
CVE-2021-23999 |
269 |
|
|
2021-06-24 |
2022-04-26 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. |
30 |
CVE-2021-23997 |
681 |
|
|
2021-06-24 |
2021-07-02 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Due to unexpected data type conversions, a use-after-free could have occurred when interacting with the font cache. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox < 88. |
31 |
CVE-2021-23994 |
909 |
|
Mem. Corr. |
2021-06-24 |
2021-07-02 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88. |
32 |
CVE-2021-23988 |
787 |
|
Mem. Corr. |
2021-03-31 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 86. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 87. |
33 |
CVE-2021-23987 |
787 |
|
Mem. Corr. |
2021-03-31 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.9, Firefox < 87, and Thunderbird < 78.9. |
34 |
CVE-2021-23979 |
787 |
|
Mem. Corr. |
2021-02-26 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 85. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 86. |
35 |
CVE-2021-23978 |
|
|
Mem. Corr. |
2021-02-26 |
2022-05-27 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8. |
36 |
CVE-2021-23972 |
|
|
|
2021-02-26 |
2022-05-23 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
One phishing tactic on the web is to provide a link with HTTP Auth. For example 'https://[email protected]'. To mitigate this type of attack, Firefox will display a warning dialog; however, this warning dialog would not have been displayed if evil.com used a redirect that was cached by the browser. This vulnerability affects Firefox < 86. |
37 |
CVE-2021-23965 |
787 |
|
Mem. Corr. |
2021-02-26 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 84. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 85. |
38 |
CVE-2021-23964 |
787 |
|
Mem. Corr. |
2021-02-26 |
2022-05-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. |
39 |
CVE-2021-23962 |
|
|
|
2021-02-26 |
2021-03-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Incorrect use of the '<RowCountChanged>' method could have led to a user-after-poison and a potentially exploitable crash. This vulnerability affects Firefox < 85. |
40 |
CVE-2021-23960 |
|
|
|
2021-02-26 |
2021-03-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Performing garbage collection on re-declared JavaScript variables resulted in a user-after-poison, and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. |
41 |
CVE-2021-23954 |
843 |
|
Mem. Corr. |
2021-02-26 |
2021-03-03 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Using the new logical assignment operators in a JavaScript switch statement could have caused a type confusion, leading to a memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7. |
42 |
CVE-2020-35114 |
787 |
|
Mem. Corr. |
2021-01-07 |
2021-01-12 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 83. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 84. |
43 |
CVE-2020-35113 |
787 |
|
Mem. Corr. |
2021-01-07 |
2021-01-12 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 83 and Firefox ESR 78.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. |
44 |
CVE-2020-26974 |
787 |
|
Mem. Corr. |
2021-01-07 |
2021-01-12 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. |
45 |
CVE-2020-26973 |
|
|
Bypass |
2021-01-07 |
2021-01-11 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. |
46 |
CVE-2020-26971 |
787 |
|
Overflow |
2021-01-07 |
2021-01-11 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6. |
47 |
CVE-2020-26959 |
416 |
|
Mem. Corr. |
2020-12-09 |
2020-12-10 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
During browser shutdown, reference decrementing could have occured on a previously freed object, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5. |
48 |
CVE-2020-15678 |
416 |
|
|
2020-10-01 |
2022-11-16 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. |
49 |
CVE-2020-15675 |
120 |
|
Mem. Corr. |
2020-10-01 |
2021-07-21 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
When processing surfaces, the lifetime may outlive a persistent buffer leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 81. |
50 |
CVE-2020-15674 |
763 |
|
Mem. Corr. |
2020-10-01 |
2021-07-21 |
6.8 |
None |
Remote |
Medium |
Not required |
Partial |
Partial |
Partial |
Mozilla developers reported memory safety bugs present in Firefox 80. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 81. |