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  • CPE Product Version: cpe:/a:mozilla:firefox_esr:10.0.8
There are 424 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2021-23987

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, Thunderbird < 78.9, and Firefox < 87.

Published: March 31, 2021; 10:15:19 AM -0400
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-23984

A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This vulnerability affects Firefox ESR < 78.9, Thunderbird < 78.9, and Firefox < 87.

Published: March 31, 2021; 10:15:19 AM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-23982

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR < 78.9, Thunderbird < 78.9, and Firefox < 87.

Published: March 31, 2021; 10:15:19 AM -0400
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-23981

A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR < 78.9, Thunderbird < 78.9, and Firefox < 87.

Published: March 31, 2021; 10:15:18 AM -0400
V3.1: 8.1 HIGH
V2.0: 5.8 MEDIUM
CVE-2021-23978

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.

Published: February 26, 2021; 11:15:12 AM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-23964

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.

Published: February 26, 2021; 11:15:12 AM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-23960

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.

Published: February 25, 2021; 10:15:13 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-23954

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.

Published: February 25, 2021; 10:15:13 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-23953

If a user clicked into a specifically crafted PDF, the PDF reader could be confused into leaking cross-origin information, when said information is served as chunked data. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.

Published: February 25, 2021; 10:15:13 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-23973

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Published: February 25, 2021; 9:15:13 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-23969

As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage." Under certain types of redirects, Firefox incorrectly set the source file to be the destination of the redirects. This was fixed to be the redirect destination's origin. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Published: February 25, 2021; 9:15:12 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-23968

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8.

Published: February 25, 2021; 9:15:12 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-35113

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.

Published: January 07, 2021; 9:15:12 AM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2020-35112

If a user downloaded a file lacking an extension on Windows, and then "Open"-ed it from the downloads panel, if there was an executable file in the downloads directory with the same name but with an executable extension (such as .bat or .exe) that executable would have been launched instead. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Published: January 07, 2021; 9:15:12 AM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2020-35111

When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening View Source could have inadvertently leaked their IP address. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Published: January 07, 2021; 9:15:12 AM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2020-26978

Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

Published: January 07, 2021; 9:15:12 AM -0500
V3.1: 6.1 MEDIUM
V2.0: 5.8 MEDIUM
CVE-2020-26974

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.

Published: January 07, 2021; 9:15:12 AM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2020-26973

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.

Published: January 07, 2021; 9:15:11 AM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2020-26971

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.

Published: January 07, 2021; 9:15:11 AM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2020-26968

Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4. 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 < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

Published: December 08, 2020; 8:15:13 PM -0500
V3.1: 8.8 HIGH
V2.0: 9.3 HIGH