CVE-2024-9402

CVE-2024-9402 concerns memory safety bugs in Firefox 130, Firefox ESR 128.2, and Thunderbird 128.2, with evidence of memory corruption that could potentially be exploited to run arbitrary code. Affected products and versions include Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3...

CVE-2021-23978

CVE-2021-23978 affects Mozilla products (Firefox and Thunderbird/Firefox ESR). The connected documents confirm memory safety bugs in Firefox 85 and ESR 78.7, with potential memory corruption that could lead to arbitrary code execution. Impact is described for Firefox < 86, Thunderbird < 78....

CVE-2021-38507

CVE-2021-38507 describes a vulnerability in HTTP/2 Opportunistic Encryption (RFC 8164) where, if a second encrypted port on the same IP (e.g., 8443) did not opt in, a network attacker could forward 443 to 8443 and trick the browser into treating the content as same-origin with HTTP. The issue was...

CVE-2024-10468

CVE-2024-10468 describes potential race conditions in IndexedDB that could cause memory corruption, leading to a potentially exploitable crash. Affected products are Mozilla Firefox and Mozilla Thunderbird earlier than version 132. Multiple connected sources-confirm this same issue across distrib...

CVE-2024-11705

The CVE-2024-11705 issue is due to NSC_DeriveKey assuming phKey is non-NULL; passing NULL leads to a segmentation fault (crash). Affected products reported across sources include Firefox and Thunderbird prior to version 133. The vulnerability description and linked advisories indicate this NULL d...

CVE-2024-6608

The CVE-2024-6608 issue affects Mozilla Firefox (and related Thunderbird components) where pointerlock can move the cursor from within an iframe to outside the viewport and even outside the Firefox window. Affected versions are Firefox < 128 and Thunderbird

CVE-2024-6612

CVE-2024-6612 describes a CSP violation leakage in devtools that caused DNS prefetching to reveal the CSP violation. Credible sources in the provided connected documents show impact on Mozilla Firefox and Thunderbird when running versions older than 128. The vulnerability is an information disclo...

CVE-2024-9396

The CVE-2024-9396 issue is a memory safety concern arising from cloning certain objects via the structured clone algorithm, potentially causing memory corruption. Affected products include Firefox (versions earlier than 131), Firefox ESR (earlier than 128.3), Thunderbird (earlier than 128.3), and...

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-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-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-2020-6806

CVE-2020-6806 is a memory-safety bug causing an out-of-bounds read during promise resolution that could lead to memory corruption and a potentially exploitable crash. The vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox ESR < 68.6, and Firefox ESR

CVE-2024-11708

The CVE-2024-11708 entry concerns Firefox and Thunderbird: a missing thread synchronization primitive could cause a data race in the PlaybackParams structure, affecting Firefox < 133 and Thunderbird

CVE-2024-5689

Mozilla Firefox before 127 had multiple vulnerabilities including a UI spoofing issue where an overlay of the My Shots button could direct users to a phishing replica Firefox Screenshots page; this CVE-2024-5689 is identified in MFSA2024-25 as part of the fixes for Firefox 127. The affected produ...

CVE-2019-11698

CVE-2019-11698 concerns theft of browser history via drag-and-drop of crafted hyperlinks to bookmarks that are dragged into web content. Public documents confirm affected products and versions: Thunderbird < 60.7, Firefox < 67, and Firefox ESR

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-2021-24002

CVE-2021-24002 is a vulnerability observed in Firefox before 88 and Thunderbird before 78.10 where clicking an FTP URL containing encoded newline characters (%0A, %0D) could cause the server to interpret newlines and execute arbitrary commands. Affected products include Firefox ESR < 78.10, Fi...

CVE-2024-11700

The CVE-2024-11700 issue concerns Firefox and Thunderbird with versions earlier than 133, where tapjacking could let malicious sites synthesize user intent confirmations to launch external applications. This is described across multiple connected advisories (e.g., Gentoo GLSA references and Alpin...

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-2021-4140

CVE-2021-4140 is a vulnerability where crafted XSLT markup could bypass the iframe sandbox, affecting Mozilla Firefox/Thunderbird products. Connected advisories consistently describe an iframe sandbox bypass with XSLT as the issue (CVE-2021-4140) and document affected versions such as Firefox ESR...

CVE-2024-10004

CVE-2024-10004 technical details are not publicly provided in the supplied documents. Monitor for updates.

CVE-2020-12406

CVE-2020-12406 involves a missing type check during unboxed objects removal in Mozilla code, leading to a crash that could be exploited to run arbitrary code. Affected products/versions from the provided documents include Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR

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-2024-11695

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-2024-7529

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-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-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-2024-7518

CVE-2024-7518 describes that select options could obscure the fullscreen notification dialog, enabling spoofing by a malicious site. Affected products and versions identified in connected docs include Mozilla Firefox (older builds: Firefox < 129 and Firefox ESR < 128.1) and Mozilla Thunderb...

CVE-2020-26976

The CVE-2020-26976 entry describes a vulnerability in Firefox where, if a HTTPS page is embedded in HTTP and a service worker exists for the secure page, the service worker could intercept the secure page request despite the iframe not being in a secure context. Affected product: Firefox (version...

CVE-2024-8386

CVE-2024-8386 : A spoofing vulnerability where, if a site has permission to open popup windows, Select elements can appear on top of another site. Affected: Firefox versions before 130, Firefox ESR before 128.2, and Thunderbird before 128.2. Impact is described in external advisories; no exploita...

CVE-2024-8388

CVE-2024-8388 affects Mozilla Firefox for Android. A masked/overlapped notification sequence (Android Toast) used to announce fullscreen transition after the CVE-2023-6870 fix can be leveraged to spoof the browser UI. Root cause: prompts/panels from Firefox and Android OS obscuring the transition...

CVE-2019-11693

CVE-2019-11693 describes a Linux-specific buffer overflow in WebGL’s bufferdata, affecting Thunderbird and Firefox (Thunderbird <60.7, Firefox <67, ESR

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-2025-1019

CVE-2025-1019 affects Firefox and Thunderbird where the z-order of fullscreen notifications can be manipulated to hide the notification, enabling a potential spoofing attack. Affected versions are Firefox and Thunderbird prior to 135. The underlying issue is the fullscreen notification display or...

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-2020-6807

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-2023-4579

CVE-2023-4579 affects Mozilla Firefox when the default search engine may render a well-formed URL from a query as the navigated URL, enabling potential spoofing. Connected advisories confirm the issue targets Firefox versions prior to 117 and involve the default search engine handling, across mul...

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-2024-53975

CVE-2024-53975 affects Firefox for iOS before version 133. The issue is a spoofing vulnerability where accessing a non-secure HTTP site that uses a non-existent port could cause the SSL padlock to appear secure, misleading users. Root cause is UI/URL handling that fails to reflect the actual secu...

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-2021-38508

CVE-2021-38508 is a vulnerability affecting Mozilla products where a form validity message shown in the same location as a permission prompt (e.g., geolocation) can obscure the prompt, potentially tricking users into granting permissions. Affected: Firefox < 94, Thunderbird < 91.3, and Fire...

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-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-2025-0246

CVE-2025-0246 describes a vulnerability where an invalid protocol scheme could allow spoofing of the address bar. The most concrete detail across sources is that this issue affected Firefox on Android and Firefox versions earlier than 134; the Android-specific note is repeated in multiple entries...

CVE-2019-17016

CVE-2019-17016 describes a bypass of the CSS sanitizer for pasted rules, due to incorrect rewriting of a @namespace rule, enabling potential data exposure. Affected products include Thunderbird and Firefox releases prior to versions 68.4.1/72.x respectively (Thunderbird before 68.4.1; Firefox ES...

CVE-2019-17017

CVE-2019-17017 is a type confusion in Firefox/Thunderbird (XPCVariant.cpp) caused by a missing case handling object types, leading to a crash with potential for arbitrary code execution. Public disclosures in connected documents confirm impact on Thunderbird and Firefox ESR through versions befor...

CVE-2019-9817

CVE-2019-9817 describes cross-origin image access via canvas that can leak image data across domains. Publicly reported impact affects Mozilla products including Thunderbird and Firefox (non-ESR and ESR lines) prior to version thresholds: Thunderbird <60.7, Firefox <67, ESR

CVE-2020-12388

CVE-2020-12388 concerns Firefox on Windows where the content-process sandbox was not sufficiently lockdown, enabling a sandbox escape. Public writeups describe this as a sandbox-escape chain that abuses the Windows token/ACL handling of the content process to break out of the sandbox; the issue a...