CVE-2020-6822

CVE-2020-6822 is an out-of-bounds write in GMPDecodeData when processing images larger than 4 GB on 32-bit builds, potentially allowing arbitrary code execution. Affected products include Thunderbird and Firefox (Thunderbird < 68.7.0, Firefox ESR < 68.7, Firefox

CVE-2024-10465

The CVE-2024-10465 issue is confirmed in connected advisories: a clipboard “paste” button could persist across browser tabs, enabling spoofing. Affected products/versions include Firefox <132, Firefox ESR <128.4, Thunderbird <128.4, and Thunderbird

CVE-2024-10467

Summary (CVE-2024-10467) Memory-safety bugs in Firefox 131, Firefox ESR 128.3, and Thunderbird 128.3 have shown memory corruption with potential for arbitrary code execution. Affected: Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird

CVE-2024-9399

CVE-2024-9399 describes a denial-of-service in Firefox/Thunderbird caused by a website initiating a specially crafted WebTransport session that crashes the browser. Affected versions: Firefox before 131 and Firefox ESR before 128.3; Thunderbird before 128.3; Thunderbird before 131. The issue is t...

CVE-2019-17005

The CVE-2019-17005 issue is a memory safety vulnerability in Mozilla’s plain text serializer where a fixed-size array for the number of elements could overflow, causing memory corruption and a potentially exploitable crash. Affected products include Thunderbird, Firefox ESR, and Firefox (all ver...

CVE-2019-9811

CVE-2019-9811 corresponds to a sandbox-escape vulnerability demonstrated in a Pwn2Own entry. The issue affects Mozilla products: Firefox ESR before 60.8, Firefox before 68, and Thunderbird before 60.8, with a malicious language-pack installation used to compromise the translation feature to escap...

CVE-2024-11695

CVE-2024-11695 describes a spoofing vulnerability in Mozilla Firefox and Thunderbird where a crafted URL containing Arabic script and whitespace could hide the page’s true origin, enabling spoofing. Affected versions: Firefox < 133 and Firefox ESR < 128.5; Thunderbird < 133 and Thunderbird

CVE-2024-9398

CVE-2024-9398 affects Mozilla Firefox and Thunderbird: an attacker could enumerate external protocol handlers by exploiting a check of window.open results, effectively testing whether a protocol handler is installed. Affected: Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and ...

CVE-2019-17012

Mozilla reported memory safety bugs in Firefox 70 and Firefox ESR 68.2, with potential to exploit for arbitrary code. Affected: Thunderbird < 68.3, Firefox ESR < 68.3, Firefox

CVE-2021-23960

CVE-2021-23960 is corroborated by connected documents: a memory-safety issue in Firefox/Thunderbird where garbage collection on re-declared JavaScript variables can cause a use-after-poison and potentially crash the process. Affected versions are Firefox < 85, Thunderbird < 78.7, and Firefo...

CVE-2024-11702

CVE-2024-11702 concerns Mozilla Firefox and Mozilla Thunderbird information disclosure due to insufficient clipboard protection in Android Private Browsing mode. Affected products: Firefox and Thunderbird with versions prior to 133. Root cause: clipboard data (sensitive data such as passwords) co...

CVE-2024-7521

CVE-2024-7521 is a Firefox/Thunderbird vulnerability caused by incomplete WebAssembly exception handling that could lead to a use-after-free and memory corruption. Affected: Firefox <129, ESR <115.14, ESR <128.1, Thunderbird <128.1, Thunderbird

CVE-2024-9394

CVE-2024-9394 describes a cross-origin information disclosure in Mozilla Firefox/Thunderbird via specially crafted multipart responses that can execute JavaScript under resource://devtools. Desktop Site Isolation limits cross-origin access, but Android versions may enable full cross-origin access...

CVE-2024-10462

CVE-2024-10462 describes a truncation of long URLs that could allow origin spoofing in a permission prompt for Mozilla Firefox and Thunderbird. The connected documents confirm affected products and versions: Firefox and Firefox ESR up to certain releases (Firefox < 132; ESR < 128.4), Thunde...

CVE-2018-18501

CVE-2018-18501 corresponds to multiple memory-safety issues in Mozilla products, affecting Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox

CVE-2020-15656

CVE-2020-15656 involves a type confusion for special arguments in IonMonkey affecting Firefox ESR <78.1, Firefox <79, and Thunderbird

CVE-2020-26968

CVE-2020-26968 is a Mozilla Firefox/Thunderbird memory-safety issue. The provided documents indicate memory-safety bugs in Firefox 82 and ESR 78.4, with potential memory corruption that could allow running arbitrary code. Affected versions: Firefox < 83, Firefox ESR < 78.5, and Thunderbird

CVE-2020-26971

CVE-2020-26971 describes a heap buffer overflow caused by unconstained blit values in user input, affecting Mozilla Firefox (unspecified versions), Thunderbird < 78.6 and Firefox ESR

CVE-2024-10461

CVE-2024-10461: In multipart/x-mixed-replace responses, Content-Disposition: attachment header was not respected, enabling XSS. Affected: Firefox <132, Firefox ESR <128.4, Thunderbird <128.4, Thunderbird

CVE-2024-11697

The CVE-2024-11697 entry concerns Mozilla Firefox and Thunderbird and involves improper handling of keypresses in the Executable File Confirmation dialog. Affected versions are Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird

CVE-2024-11701

CVE-2024-11701 affects Mozilla Firefox and Mozilla Thunderbird. The issue is an incorrect domain being displayed in the address bar during interrupted navigation, which could enable spoofing attacks. Affected versions are Firefox < 133 and Thunderbird

CVE-2024-7529

CVE-2024-7529: The date picker can partially obscure security prompts in Mozilla Firefox and Thunderbird up to specific versions (Firefox < 129, ESR < 115.14/128.1; Thunderbird

CVE-2023-23602

CVE-2023-23602 describes a mishandled security check when creating a WebSocket in a WebWorker, causing the Content Security Policy connect-src header to be ignored. Affected products in the provided sources include Firefox (versions before 109), Firefox ESR (before 102.7), and Thunderbird (before...

CVE-2020-15652

CVE-2020-15652 : The issue is a leak of the result of a cross-origin redirect observed from stack traces of JavaScript errors in web workers. Affected products include Firefox (and ESR branches) and Thunderbird before version 79/68.11–78.1 depending on branch. The root cause is described as a mem...

CVE-2020-26959

CVE-2020-26959 is a use-after-free in the WebRequestService during browser shutdown, potentially enabling memory corruption and a crash in Firefox/Thunderbird prior to the fixed versions. Connected advisories confirm this affects Firefox <83, Firefox ESR <78.5, and Thunderbird

CVE-2021-29964

CVE-2021-29964 is a local, Windows-only vulnerability in Mozilla Firefox where a hostile WM_COPYDATA message could cause an out-of-bounds read while parsing the message. Affected products include Thunderbird < 78.11, Firefox < 89, and Firefox ESR

CVE-2021-38500

CVE-2021-38500 corresponds to memory-safety bugs in Firefox 92/ESR 91.1–93 and affects Thunderbird and Firefox ESR up to certain versions (Thunderbird <78.15, <91.2; Firefox ESR <91.2, <78.15; Firefox

CVE-2021-43541

CVE-2021-43541 is a vulnerability in how external protocol handler URLs are processed. In affected products (Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox

CVE-2022-46872

CVE-2022-46872 describes an attacker who compromised a Thunderbird content process on Linux could partially escape the sandbox and read arbitrary files via clipboard-related IPC messages. Publicly cited texts indicate the vulnerability affects Firefox <108, Firefox ESR <102.6, and Thunderbird

CVE-2020-6807

CVE-2020-6807 describes a use-after-free in Thunderbird involving stream-reinit when a device/stream is modified as it is being destroyed. Affected products include Thunderbird

CVE-2018-18492

CVE-2018-18492 is a use-after-free in the Firefox/ Thunderbird codebase: after deleting a selection element, a weak reference in the options collection can lead to a potentially exploitable crash. Affected products include Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox

CVE-2020-12405

The CVE-2020-12405 issue is a race condition in Thunderbird/Firefox SharedWorkerService that could cause a crash. It affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR

CVE-2019-11761

CVE-2019-11761 affects Thunderbird (and Firefox/Firefox ESR) via an unintended access to a privileged JSONView object that has been cloned into content. The root cause is exposure of this object through a form using a data: URI, enabling access to privileged content and bypassing defense-in-depth...

CVE-2020-26951

CVE-2020-26951 involves a parsing and event loading mismatch in Firefox’s SVG code that could allow load events to fire after sanitization, potentially bypassing a built-in sanitizer. Affected products include Firefox < 83, Firefox ESR < 78.5, and Thunderbird

CVE-2020-26956

CVE-2020-26956 is an XSS issue caused by removing HTML elements during sanitization, which could leave SVG event handlers active. Affected: Firefox <83, Firefox ESR <78.5, Thunderbird

CVE-2020-26958

The CVE-2020-26958 issue is a MIME-type handling flaw: Firefox did not block script execution when responses with incorrect MIME types were intercepted and cached via a ServiceWorker, enabling a cross-site script inclusion or CSP bypass. Affected products are Firefox (non-ESR) < 83, Firefox ES...

CVE-2021-43543

CVE-2021-43543 is a CSP sandbox bypass where documents loaded with the CSP sandbox directive could escape restrictions by embedding additional content. Affected products include Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox

CVE-2019-11762

The CVE-2019-11762 issue is a cross-origin origin isolation bug where two same-origin documents setting document.domain differently could allow calling arbitrary DOM methods/getters/setters on the now-cross-origin window. Affected products include Firefox (<70) and Firefox ESR (<68.2), and ...

CVE-2020-15659

CVE-2020-15659 concerns memory safety bugs in Firefox 78 and Firefox ESR 78.x, with potential to run arbitrary code. The entry affects Firefox < 79 and Firefox ESR < 68.11/78.1, and Thunderbird

CVE-2020-15673

CVE-2020-15673 refers to memory-safety bugs reported in Mozilla Firefox (including ESR) and Thunderbird. Affected products and versions include Firefox <81, Firefox ESR <78.3, and Thunderbird

CVE-2024-7525

CVE-2024-7525 is linked to a vulnerability in Mozilla Firefox/Thunderbird where a web extension with minimal permissions could create a StreamFilter, enabling reading and modification of response bodies on any site due to a missing permission check when creating the StreamFilter. Affected product...

CVE-2025-0241

CVE-2025-0241 is a memory-corruption vulnerability in Mozilla Firefox/Thunderbird caused by faulty text segmentation. Affected products include Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird

CVE-2019-11764

CVE-2019-11764 refers to memory safety bugs in Mozilla Firefox (including ESR) and Thunderbird. The issues show evidence of memory corruption and, with sufficient effort, could be exploited to run arbitrary code. Affected products/versions (as stated): Firefox versions before 70, Thunderbird befo...

CVE-2020-26961

CVE-2020-26961 describes a DoH-related issue where IPv4 addresses mapped through IPv6 bypass RFC1918 filtering, enabling a DNS rebinding-like condition in Firefox/Thunderbird before versions 83/78.5. Connected sources (CentOS advisories) confirm Mozilla patches addressing multiple issues includin...

CVE-2021-43545

CVE-2021-43545: Denial of Service via the Location API loop in Firefox/Thunderbird. Affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox

CVE-2018-18493

CVE-2018-18493 describes a buffer overflow in the Skia library used for hardware-accelerated 2D canvas, caused by 32-bit offset calculations where 64-bit calculations were needed. Affected products include Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox

CVE-2020-6805

CVE-2020-6805 affects Thunderbird (and Firefox) with a use-after-free in the Quota manager when removing data about origins for a recently closed tab, potentially causing a crash. Affected versions include Thunderbird < 68.6 and Firefox < 74/ESR68.6/ESR

CVE-2019-17010

CVE-2019-17010 is a race-condition vulnerability that, during device orientation checks, can cause a use-after-free and a potentially exploitable crash in Thunderbird and Firefox products. It affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox

CVE-2019-11763

The CVE-2019-11763 entry concerns a parsing defect in handling null bytes in HTML entities, causing Firefox to mis-parse entities and potentially treat HTML comments as code. This could enable XSS in web apps under certain conditions and allow masking of actual characters by filters. Public detai...

CVE-2020-12420

CVE-2020-12420 describes a race-condition use-after-free when connecting to a STUN server, leading to memory corruption and potentially exploitable crashes. Affected products include Thunderbird and Firefox variants prior to versions 68.10.x (Thunderbird < 68.10.0; Firefox ESR < 68.10, Fire...