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Vendor: Mozilla • 3,269 CVEs

CVEs (3,269)

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2Mozilla
Redhat
6Enterprise Linux
Enterprise Linux EusEnterprise Linux Server Aus+3 more
Jun 17, 2026
Apr 26, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption, which resu...Show more
The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption, which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.Show less
2Mozilla
Redhat
6Enterprise Linux
Enterprise Linux EusEnterprise Linux Server Aus+3 more
Jun 17, 2026
Apr 26, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is...Show more
The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.Show less
1Mozilla
2Firefox
Thunderbird
Jun 17, 2026
Apr 26, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
A use-after-free vulnerability can occur when a raw pointer to a DOM element on a page is obtained using JavaScript and the element is then removed while still in use. This results in a potentially exploitable crash. Thi...Show more
A use-after-free vulnerability can occur when a raw pointer to a DOM element on a page is obtained using JavaScript and the element is then removed while still in use. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.Show less
1Mozilla
1Firefox
Jun 17, 2026
Apr 26, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Mozilla developers and community members reported memory safety bugs present in Firefox 65. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be explo...Show more
Mozilla developers and community members reported memory safety bugs present in Firefox 65. 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 < 66.Show less
2Mozilla
Redhat
6Enterprise Linux
Enterprise Linux EusEnterprise Linux Server Aus+3 more
Jun 17, 2026
Apr 26, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Mozilla developers and community members reported memory safety bugs present in Firefox 65, Firefox ESR 60.5, and Thunderbird 60.5. Some of these bugs showed evidence of memory corruption and we presume that with enough...Show more
Mozilla developers and community members reported memory safety bugs present in Firefox 65, Firefox ESR 60.5, and Thunderbird 60.5. 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 Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.Show less
1Mozilla
1Firefox
Nov 21, 2024
Apr 26, 2019
N/A· v4
6.1 MEDIUM· v3
4.3 MEDIUM· v2
Unsanitized output in the browser UI leaves HTML tags in place and can result in arbitrary code execution in Firefox before version 58.0.1.
1Mozilla
1Firefox
Nov 21, 2024
Apr 26, 2019
N/A· v4
4.3 MEDIUM· v3
4.3 MEDIUM· v2
Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method. *Note: This only affects Firefox 65. Previous versions are unaffected.*. This vulnera...Show more
Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method. *Note: This only affects Firefox 65. Previous versions are unaffected.*. This vulnerability affects Firefox < 65.0.1.Show less
1Mozilla
1Firefox
Nov 21, 2024
Apr 26, 2019
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
The about:crashcontent and about:crashparent pages can be triggered by web content. These pages are used to crash the loaded page or the browser for test purposes. This issue allows for a non-persistent denial of service...Show more
The about:crashcontent and about:crashparent pages can be triggered by web content. These pages are used to crash the loaded page or the browser for test purposes. This issue allows for a non-persistent denial of service (DOS) attack by a malicious site which links to these pages. This vulnerability affects Firefox < 64.Show less
1Mozilla
1Firefox
Nov 21, 2024
Apr 26, 2019
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
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 60.
2Mozilla
Sil
2Firefox
Graphite2
Nov 21, 2024
Apr 15, 2019
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
Use of uninitialized memory in Graphite2 library in Firefox before 54 in graphite2::GlyphCache::Loader::read_glyph function.
2Mozilla
Sil
2Firefox
Graphite2
Nov 21, 2024
Apr 15, 2019
N/A· v4
8.1 HIGH· v3
5.8 MEDIUM· v2
Heap-based Buffer Overflow read in Graphite2 library in Firefox before 54 in graphite2::Silf::getClassGlyph.
2Mozilla
Sil
2Firefox
Graphite2
Nov 21, 2024
Apr 15, 2019
N/A· v4
9.1 CRITICAL· v3
6.4 MEDIUM· v2
Out-of-bounds read in Graphite2 Library in Firefox before 54 in graphite2::Silf::readGraphite function.
2Mozilla
Sil
2Firefox
Graphite2
Nov 21, 2024
Apr 15, 2019
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
Heap-based Buffer Overflow write in Graphite2 library in Firefox before 54 in lz4::decompress src/Decompressor.
2Mozilla
Sil
2Firefox
Graphite2
Nov 21, 2024
Apr 15, 2019
N/A· v4
8.1 HIGH· v3
5.8 MEDIUM· v2
Out-of-bounds read in Graphite2 Library in Firefox before 54 in graphite2::Pass::readPass function.
2Mozilla
Sil
2Firefox
Graphite2
Nov 21, 2024
Apr 12, 2019
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
Heap-based Buffer Overflow in Graphite2 library in Firefox before 54 in lz4::decompress function.
1Mozilla
3Firefox
Firefox EsrThunderbird
Nov 21, 2024
Feb 28, 2019
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
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...Show more
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 Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.Show less
4Canonical
DebianMozilla+1 more
11Debian Linux
Enterprise Linux DesktopEnterprise Linux Server+8 more
Nov 21, 2024
Feb 28, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
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 vuln...Show more
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 < 64.Show less
2Canonical
Mozilla
2Firefox
Ubuntu Linux
Nov 21, 2024
Feb 28, 2019
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
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...Show more
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 vulnerability affects Firefox < 64.Show less
1Mozilla
1Firefox
Nov 21, 2024
Feb 28, 2019
N/A· v4
8.8 HIGH· v3
6.8 MEDIUM· v2
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 fr...Show more
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 systems. Other operating systems are not affected.*. This vulnerability affects Firefox < 64.Show less
2Canonical
Mozilla
2Firefox
Ubuntu Linux
Nov 21, 2024
Feb 28, 2019
N/A· v4
6.5 MEDIUM· v3
4.3 MEDIUM· v2
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 pa...Show more
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. This vulnerability affects Firefox < 64.Show less