Mozilla Firefox vulnerabilities

CVE-2017-5446 [CRITICAL] CWE-125 CVE-2017-5446: An out-of-bounds read when an HTTP/2 connection to a servers sends "DATA" frames with incorrect data An out-of-bounds read when an HTTP/2 connection to a servers sends "DATA" frames with incorrect data content. This leads to a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

CVE-2018-5099 [CRITICAL] CWE-416 CVE-2018-5099: A use-after-free vulnerability can occur when the widget listener is holding strong references to br A use-after-free vulnerability can occur when the widget listener is holding strong references to browser objects that have previously been freed, resulting in a potentially exploitable crash when these references are used. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.

CVE-2018-5103 [CRITICAL] CWE-416 CVE-2018-5103: A use-after-free vulnerability can occur during mouse event handling due to issues with multiprocess A use-after-free vulnerability can occur during mouse event handling due to issues with multiprocess support. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58.

CVE-2017-5441 [CRITICAL] CWE-416 CVE-2017-5441: A use-after-free vulnerability when holding a selection during scroll events. This results in a pote A use-after-free vulnerability when holding a selection during scroll events. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

CVE-2018-5148 [CRITICAL] CWE-416 CVE-2018-5148: A use-after-free vulnerability can occur in the compositor during certain graphics operations when a A use-after-free vulnerability can occur in the compositor during certain graphics operations when a raw pointer is used instead of a reference counted one. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 52.7.3 and Firefox < 59.0.2.

CVE-2017-5430 [CRITICAL] CWE-119 CVE-2017-5430: Memory safety bugs were reported in Firefox 52, Firefox ESR 52, and Thunderbird 52. Some of these bu Memory safety bugs were reported in Firefox 52, Firefox ESR 52, and Thunderbird 52. 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 < 52.1, Firefox ESR < 52.1, and Firefox < 53.

CVE-2018-5096 [CRITICAL] CWE-416 CVE-2018-5096: A use-after-free vulnerability can occur while editing events in form elements on a page, resulting A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 52.6 and Thunderbird < 52.6.

CVE-2013-0756 [CRITICAL] CWE-416 CVE-2013-0756: Use-after-free vulnerability in the obj_toSource function in Mozilla Firefox before 18.0, Firefox ES Use-after-free vulnerability in the obj_toSource function in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderbird ESR 17.x before 17.0.2, and SeaMonkey before 2.15 allows remote attackers to execute arbitrary code via a crafted web page referencing JavaScript Proxy objects that are not properly handled

CVE-2017-5402 [CRITICAL] CWE-416 CVE-2017-5402: A use-after-free can occur when events are fired for a "FontFace" object after the object has been a A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

CVE-2024-2608 [HIGH] CWE-680 CVE-2024-2608: `AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` c `AppendEncodedAttributeValue(), ExtraSpaceNeededForAttrEncoding()` and `AppendEncodedCharacters()` could have experienced integer overflows, causing underallocation of an output buffer leading to an out of bounds write. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

CVE-2017-7750 [CRITICAL] CWE-416 CVE-2017-7750: A use-after-free vulnerability during video control operations when a "<track>" element holds a refe A use-after-free vulnerability during video control operations when a "" element holds a reference to an older window if that window has been replaced in the DOM. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

CVE-2009-1232 [MEDIUM] CWE-20 CVE-2009-1232: Mozilla Firefox 3.0.8 and earlier 3.0.x versions allows remote attackers to cause a denial of servic Mozilla Firefox 3.0.8 and earlier 3.0.x versions allows remote attackers to cause a denial of service (memory corruption) via an XML document composed of a long series of start-tags with no corresponding end-tags. NOTE: it was later reported that 3.0.10 and earlier are also affected.

CVE-2017-7802 [CRITICAL] CWE-416 CVE-2017-7802: A use-after-free vulnerability can occur when manipulating the DOM during the resize event of an ima A use-after-free vulnerability can occur when manipulating the DOM during the resize event of an image element. If these elements have been freed due to a lack of strong references, a potentially exploitable crash may occur when the freed elements are accessed. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

CVE-2010-0183 [CRITICAL] CWE-399 CVE-2010-0183: Use-after-free vulnerability in the nsCycleCollector::MarkRoots function in Mozilla Firefox 3.5.x be Use-after-free vulnerability in the nsCycleCollector::MarkRoots function in Mozilla Firefox 3.5.x before 3.5.10 and SeaMonkey before 2.0.5 allows remote attackers to execute arbitrary code via a crafted HTML document, related to an improper frame construction process for menus.

CVE-2026-6770 [MEDIUM] CWE-200 CVE-2026-6770: Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefo Other issue in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

CVE-2018-5166 [HIGH] CWE-269 CVE-2018-5166: WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission WebExtensions can use request redirection and a "filterReponseData" filter to bypass host permission settings to redirect network traffic and access content from a host for which they do not have explicit user permission. This vulnerability affects Firefox < 60.

CVE-2017-5442 [CRITICAL] CWE-416 CVE-2017-5442: A use-after-free vulnerability during changes in style when manipulating DOM elements. This results A use-after-free vulnerability during changes in style when manipulating DOM elements. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

CVE-2017-5472 [CRITICAL] CWE-416 CVE-2017-5472: A use-after-free vulnerability with the frameloader during tree reconstruction while regenerating CS A use-after-free vulnerability with the frameloader during tree reconstruction while regenerating CSS layout when attempting to use a node in the tree that no longer exists. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

CVE-2017-7756 [CRITICAL] CWE-416 CVE-2017-7756: A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Req A use-after-free and use-after-scope vulnerability when logging errors from headers for XML HTTP Requests (XHR). This could result in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.

CVE-2010-1208 [HIGH] CWE-416 CVE-2010-1208: Use-after-free vulnerability in the attribute-cloning functionality in the DOM implementation in Moz Use-after-free vulnerability in the attribute-cloning functionality in the DOM implementation in Mozilla Firefox 3.5.x before 3.5.11 and 3.6.x before 3.6.7, and SeaMonkey before 2.0.6, allows remote attackers to execute arbitrary code via vectors related to deletion of an event attribute node with a nonzero reference count.