CVE-2017-5402

CVE-2017-5402 is a use-after-free in FontFace event handling that can crash Firefox/Thunderbird when a FontFace object is destroyed but events are fired. Affected products and versions include Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird

CVE-2017-7801

CVE-2017-7801 is a use-after-free in marquee layout during window resize that frees the updated style object while still in use, potentially allowing a crash or exploit. Affected products include Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox

CVE-2021-43535

CVE-2021-43535 is a memory-safety vulnerability in Mozilla browsers where an HTTP2 session object could be released on a different thread, causing use-after-free, memory corruption, and a potentially exploitable crash. The consolidated information across sources indicates the issue affects Firefo...

CVE-2025-3028

CVE-2025-3028 describes a use-after-free in memory handling when JavaScript runs during XSLTProcessor document transformation. Affected products include Firefox versions before 137 and Firefox ESR before 115.22/128.9, and Thunderbird versions before 137/128.9. Public advisories (e.g., ALAS2FIREFO...

CVE-2017-7807

CVE-2017-7807 describes a domain URL hijack via AppCache fallback, resolved by requiring fallback files to be inside the manifest directory. Affected products include Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox

CVE-2017-7814

This CVE (CVE-2017-7814) affects Mozilla products (Firefox < 56, Firefox ESR < 52.4, Thunderbird

CVE-2018-12389

CVE-2018-12389 relates to memory safety bugs in Mozilla Firefox ESR 60.x affecting Firefox ESR < 60.3 and Thunderbird

CVE-2021-43534

The CVE-2021-43534 entry concerns memory safety bugs in Mozilla Firefox 93 and Firefox ESR 91.2, with potential for memory corruption and possible arbitrary code execution. Affected products are Firefox < 94, Thunderbird < 91.3, and Firefox ESR

CVE-2022-38472

The CVE-2022-38472 issue is a cross-origin spoofing vulnerability where XSLT error handling could allow attacker‑controlled content to be displayed as a different origin in the address bar, potentially tricking users into submitting data to a spoofed site. Affected products/versions (as stated in...

CVE-2023-25728

The CVE-2023-25728 entry describes a CSP-Report-Only header issue where an attacker could leak a child iframe’s unredacted URI during a redirect, affecting Firefox < 110, Thunderbird < 102.8, and Firefox ESR

CVE-2016-9904

CVE-2016-9904 describes a timing-attack vulnerability in JavaScript Map/Set usage that can leak information across websites. Affected products include Firefox versions before 50.1, Firefox ESR before 45.6, and Thunderbird before 45.6. The issue enables an attacker to determine if an atom is used ...

CVE-2017-5383

CVE-2017-5383 describes spoofing via specific Unicode glyphs used to alter the location bar content. The initial entry notes impact on Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox

CVE-2023-6204

CVE-2023-6204 describes an out-of-bounds read that can leak memory data into images created on the canvas element. The issue affects Firefox versions older than 120, Firefox ESR older than 115.5.0, and Thunderbird older than 115.5.0. The available connected advisories corroborate the vulnerabilit...

CVE-2014-1510

CVE-2014-1510 is a WebIDL-related remote code execution in Mozilla Firefox family (Firefox, Thunderbird, SeaMonkey) where an IDL fragment can trigger window.open with chrome privileges. Affected products and versions are Mozilla Firefox (pre-28.0 and ESR 24.x before 24.4 for some branches), Thund...

CVE-2017-5443

The CVE-2017-5443 entry describes an out-of-bounds write during BinHex decoding that affects Mozilla products: Thunderbird before 52.1, Firefox ESR before 52.1, and Firefox before 53. The impact is memory corruption with potential crashes and possible arbitrary code execution. Upstream fixes are ...

CVE-2018-12361

CVE-2018-12361 is an integer overflow in the SwizzleData code during buffer-size calculation that can lead to a potentially exploitable crash when inputs aren’t sanitized. Affected products include Mozilla Thunderbird before 60 and Firefox family before 61 (Firefox ESR before 60.1). Public remedi...

CVE-2018-5168

CVE-2018-5168 is a vulnerability in Thunderbird and Firefox where an attacker can bypass permission checks by manipulating the baseURI of the theme element, enabling a user interaction-free installation of a theme that could contain offensive images. Affected products and versions per the records...

CVE-2022-3034

CVE-2022-3034 describes a vulnerability in Mozilla Thunderbird where receiving an HTML email that requests loading an iframe from a remote location causes the browser to fetch the remote document, even though Thunderbird does not display it. The issue affects Thunderbird versions prior to 102.2.1...

CVE-2023-25732

CVE-2023-25732 involves an out-of-bounds memory write caused by incorrect calculation of the input size when encoding data from inputStream in xpcom. The vulnerability affects Firefox before 110, Thunderbird before 102.8, and Firefox ESR before 102.8. Connected advisories corroborate the issue an...

CVE-2023-25737

CVE-2023-25737 describes an invalid downcast from nsTextNode to SVGElement that could lead to undefined behavior. The vulnerability is observed in Mozilla Firefox (versions before 110), Thunderbird (versions before 102.8), and Firefox ESR (versions before 102.8). Connected advisories consistently...

CVE-2012-5829

CVE-2012-5829 is a heap-based buffer overflow in the nsWindow::OnExposeEvent function affecting Mozilla Firefox before 17.0, Firefox ESR before 10.0.11, Thunderbird before 17.0, Thunderbird ESR before 10.0.11, and SeaMonkey before 2.14. Connected documents confirm this vulnerability across multip...

CVE-2015-0801

CVE-2015-0801 describes a cross-domain bypass of Same Origin Policy in Mozilla Firefox (and derivatives) via anchor navigation to execute JavaScript with chrome privileges. The issue affects Firefox/Firefox ESR and Thunderbird (per initial entry and IBM/Debian advisories referencing these CVEs). ...

CVE-2022-36319

CVE-2022-36319 involves a mouse position spoofing issue caused by combining CSS overflow and transform properties, affecting Firefox ESR and Thunderbird prior to certain fixed versions. Affected are Firefox ESR < 102.1, Firefox ESR < 91.12, Firefox < 103, Thunderbird < 102.1, and Thun...

CVE-2023-32215

CVE-2023-32215 refers to memory-safety bugs in Mozilla Firefox and Firefox ESR (112/ESR 102.10) with potential for arbitrary code execution. Affected are Firefox < 113, Firefox ESR < 102.11, and Thunderbird

CVE-2023-6208

CVE-2023-6208 is a Firefox/Thunderbird issue limited to X11: text selected via the Selection API is copied into the primary selection. Affected: Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird

CVE-2023-32206

CVE-2023-32206: An out-of-bounds read in the RLBox Expat driver could crash affected Mozilla components. Affected software includes Firefox <113, Firefox ESR <102.11, and Thunderbird

CVE-2017-5405

CVE-2017-5405: In Mozilla Firefox/Thunderbird the vulnerability arises from how certain FTP response codes are handled, causing uninitialized port values to be used in FTP operations. Connected advisories confirm this CVE is fixed in Thunderbird/Firefox branches around version 52 and ESR 45.8 (e....

CVE-2017-5447

CVE-2017-5447 is an out-of-bounds read in glyph widths processing during text layout that can cause a crash and potentially expose memory. Affected products include Mozilla Thunderbird (<52.1) and Mozilla Firefox/Firefox ESR (ESR <52.1; Firefox

CVE-2019-11704

CVE-2019-11704 affects Mozilla Thunderbird via the libical-based iCal parser. It is a heap-based overflow in icalmemory_strdup_and_dequote (icalvalue.c) that can crash or be exploitable when processing calendar data in certain emails, affecting Thunderbird

CVE-2021-38505

The CVE describes a Windows 10 Cloud Clipboard issue where copied data could be recorded to the cloud if Cloud Clipboard is enabled. Affected products/versions identified are Firefox before 94, Thunderbird before 91.3, and Firefox ESR before 91.3 on Windows 10+. The root cause is that application...

CVE-2022-38477

CVE-2022-38477 concerns memory safety bugs reported by Mozilla’s Fuzzing Team in Firefox 103 and Firefox ESR 102.1. The entry notes evidence of memory corruption and a presumption that, with sufficient effort, some bugs could be exploited to execute arbitrary code. Affected products explicitly li...

CVE-2023-1945

CVE-2023-1945 is a vulnerability in Mozilla code paths related to the Safe Browsing API. The initial data from the Safe Browsing API could lead to memory corruption and a potentially exploitable crash. Affected products per the connected data: Thunderbird and Firefox ESR, affected when using vers...

CVE-2014-1490

CVE-2014-1490 : A race condition in NSS libssl session ticket processing (use-after-free) could allow remote attackers to cause a denial of service or, per the description, potentially other impact via a resumption handshake. Affected: NSS up to 3.15.4 and, by extension, Mozilla products (Firefox...

CVE-2017-5434

CVE-2017-5434 is a use-after-free in Firefox/Thunderbird related to focus-handling that can cause a potentially exploitable crash. Public details in connected advisories show the flaw affects Firefox versions before 53 (and ESR branches before 53/52.1) with Firefox 53+ fixes and ESR updates deliv...

CVE-2018-12379

CVE-2018-12379 describes an out-of-bounds write triggered when the Mozilla Updater opens a MAR file containing a very long item filename. This requires that the updater is run locally with the malicious MAR file, potentially allowing a crash exploitable by an attacker. Affected products include F...

CVE-2018-18509

CVE-2018-18509 is a S/MIME signature verification flaw in Mozilla Thunderbird that allows a remote attacker to reuse a valid S/MIME signature to craft emails with arbitrary content, making the message appear signed even though content isn’t covered by the signature. Affected products are Thunderb...

CVE-2023-5727

CVE-2023-5727 affects Mozilla Firefox and Thunderbird prior to certain versions. The vulnerability arises when downloading Windows app packages (.msix, .msixbundle, .appx, .appxbundle): the executable file warning was not presented, potentially allowing commands to run on a user’s machine. Affect...

CVE-2011-2371

CVE-2011-2371 is an integer overflow in Mozilla Firefox’s Array.reduceRight that could cause remote code execution when processing very large JavaScript arrays. Affected products include Firefox up to 3.6.18 and 4.x through 4.0.1, Thunderbird before 3.1.11, and SeaMonkey through 2.0.14. The issue...

CVE-2016-9895

CVE-2016-9895 affects Mozilla Firefox (<50.1) and Firefox ESR (<45.6) and Thunderbird (

CVE-2017-7787

CVE-2017-7787 is a same-origin policy bypass vulnerability affecting Thunderbird and Firefox browsers. Affected products include Thunderbird versions older than 52.3, Firefox ESR older than 52.3, and Firefox older than 55. The issue occurs on pages with embedded iframes during page reloads, allow...

CVE-2017-7791

CVE-2017-7791: A data: protocol-based modal alert spoofing vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox

CVE-2017-7809

CVE-2017-7809 is a use-after-free in an editor DOM node during tree traversal that can crash the process. Affected products cited across connected docs include Mozilla Thunderbird and Mozilla Firefox components; IBM SONAS ships vulnerable Firefox releases and lists a fix in IBM SONAS version 1.5....

CVE-2018-12367

CVE-2018-12367 affects Mozilla Thunderbird < 60, Firefox ESR < 60.1, and Firefox

CVE-2019-11706

CVE-2019-11706 is a type confusion in Thunderbird’s libical implementation, specifically icaltimezone_get_vtimezone_properties, triggered by certain emails and leading to a crash in Thunderbird

CVE-2022-45411

CVE-2022-45411: Cross-Site Tracing vulnerability in Firefox/Thunderbird due to servers echoing Trace requests and exposure of authorization headers/cookies; mitigations have been implemented via browser fetch/XHR limits and non-standard headers like X-Http-Method-Override. The issue is acknowledg...

CVE-2017-5441

CVE-2017-5441 is a use-after-free in Mozilla Firefox (and related Mozilla products) that occurs when holding a text selection during scroll events, leading to a potentially exploitable crash. Affected: Firefox < 53 (and ESR lines), Thunderbird < 52.1, Firefox ESR

CVE-2017-7785

CVE-2017-7785 is a buffer overflow in ARIA attribute handling within the DOM that affects Thunderbird (< 52.3) and Firefox components (Firefox ESR < 52.3, Firefox

CVE-2017-7786

A buffer overflow in the image renderer can be triggered when painting non-displayable SVG elements, causing a crash and, in some advisories, potential arbitrary-code execution. Affected products include Mozilla Thunderbird and Firefox/Firefox ESR prior to certain versions (Thunderbird < 52.3,...

CVE-2017-7800

CVE-2017-7800 is a use-after-free in WebSockets that can trigger a crash when the connection object is freed before disconnection finishes. Affected: Thunderbird < 52.3, Firefox ESR < 52.3, Firefox

CVE-2023-25729

CVE-2023-25729 involves a permissions prompt issue for external schemes that was only shown for ContentPrincipals, allowing extensions using ExpandedPrincipals to open them without user interaction. This could enable actions like downloading files or interacting with installed software. Affected:...