CVE-2019-11712

CVE-2019-11712 describes a vulnerability where NPAPI plugins (e.g., Flash) performing POST requests that follow a 308 redirect can bypass CORS, enabling CSRF. Affected products include Mozilla Firefox ESR < 60.8, Firefox < 68, and Thunderbird

CVE-2019-11742

CVE-2019-11742 describes a same-origin policy violation enabling theft of cross-origin images via a combination of SVG filters and a element, due to an error in how cached image content is treated. Affected: Firefox versions before 69, Thunderbird before 68.1 (and before 60.9 for ESR branches), ...

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-2019-9800

CVE-2019-9800 is supported by multiple connected advisories indicating memory safety bugs in Mozilla products (Thunderbird 60.x, Firefox ESR 60.x, Firefox 66–67 range) that could allow arbitrary code execution. The root cause is memory safety issues leading to memory corruption; affected versions...

CVE-2024-5695

CVE-2024-5695 describes an out-of-memory condition in Mozilla Firefox’s probabilistic heap checker allocations that could trigger an assertion and, in rarer cases, memory corruption. Affected software: Firefox versions older than 127. The root cause is tied to the probabilistic heap checker alloc...

CVE-2019-11717

CVE-2019-11717 affects Firefox ESR <60.8, Firefox <68, and Thunderbird

CVE-2019-11733

CVE-2019-11733 affects Firefox before 68.0.2 (and ESR before 68.0.2). When a master password is set, stored passwords in the Saved Logins dialog could be copied to the clipboard via the copy password action without re-entering the master password in the same session, enabling potential theft of s...

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-2023-23601

CVE-2023-23601 is a browser navigation/vulnerability caused by dragging a URL from a cross-origin iframe into the same tab, enabling potential spoofing. Public records confirm impact on Firefox (less than 109) and Firefox ESR (less than 102.7) and Thunderbird (less than 102.7). Multiple advisorie...

CVE-2024-11705

The NSC_DeriveKey function in Firefox and Thunderbird (versions prior to 133) contains a NULL pointer dereference vulnerability. The function incorrectly assumes that the phKey parameter is always non-NULL; however, when passed as NULL, it triggers a segmentation fault (SEGV) , leading to applica...

CVE-2024-9402

Mozilla products, specifically Firefox , Firefox ESR , and Thunderbird , are impacted by memory safety bugs (CWE-119). These vulnerabilities affect versions of Firefox prior to 131, Firefox ESR prior to 128.3, and Thunderbird prior to 128.3 or 131. The flaws may lead to memory corruption , which ...

CVE-2025-0244

The Mozilla Firefox browser is vulnerable to an issue where a malicious actor can spoof the address bar by redirecting the user to an invalid protocol scheme . This vulnerability specifically affects Firefox on Android operating systems and is not present in other OS versions. The flaw is rooted ...

CVE-2019-17008

CVE-2019-17008 describes a use-after-free vulnerability that can occur during the destruction of nested workers, leading to a potentially exploitable crash. Affected products include Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox

CVE-2019-9795

CVE-2019-9795 describes a vulnerability in the IonMonkey JIT compiler where a type-confusion could be exploited by malicious JavaScript to trigger a crash. Public references indicate affected products include Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox

CVE-2020-12417

CVE-2020-12417 is a memory-corruption issue in Firefox/Thunderbird affecting ARM64 JavaScript ValueTags, permitting a cross-boundary pass for ARM64 objects. Affected: Firefox ESR < 68.10, Firefox < 78, and Thunderbird

CVE-2020-6797

CVE-2020-6797 describes a macOS-specific issue where downloading a file with the .fileloc extension could cause a semi-privileged extension to launch an arbitrary application on the user’s Mac. The attacker is constrained by the ability to download only quarantined files and cannot pass command-l...

CVE-2024-10004

A vulnerability in Firefox for iOS (versions

CVE-2024-10463

CVE-2024-10463 identifies a vulnerability where video frames could have been leaked between origins in certain situations. This flaw affects Firefox versions < 132, Firefox ESR < 128.4 (and < 115.17), Thunderbird < 128.4, and Thunderbird

CVE-2024-7522

The editor component in Mozilla products is vulnerable to an out-of-bounds read because the code failed to properly validate an attribute value. This vulnerability affects Firefox versions < 129, Firefox ESR < 115.14 and < 128.1, Thunderbird < 128.1, 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-2021-23995

CVE-2021-23995 is a use-after-free vulnerability in Responsive Design Mode that could allow arbitrary code execution. Affected products: Firefox ESR <78.10, Thunderbird <78.10, and Firefox

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-2020-6812

CVE-2020-6812: Affected software includes Thunderbird

CVE-2024-10467

Mozilla products including Firefox , Firefox ESR , and Thunderbird are affected by memory safety bugs including out-of-bounds write , out-of-bounds read , and buffer copy without checking size (CWE-787, CWE-125, CWE-120). The vulnerability impacts Firefox < 132 , Firefox ESR < 128.4 , Thund...

CVE-2024-11695

A flaw in Mozilla software allows a crafted URL containing Arabic script and whitespace characters to hide the true origin of a page, potentially enabling a spoofing attack . This vulnerability affects Firefox versions < 133, Firefox ESR < 128.5, Thunderbird versions < 133, and Thunderbird

CVE-2024-11700

The SpiderMonkey JavaScript and WebAssembly engine, used in products like Firefox and Thunderbird , is susceptible to tapjacking via malicious websites. This flaw allows attackers to perform user intent confirmation , potentially tricking users into unknowingly approving the launch of external ap...

CVE-2024-5694

The CVE-2024-5694 entry describes a use-after-free in the Firefox JavaScript engine that allows reading memory from the JavaScript string heap. Affected product: Mozilla Firefox earlier than 127. Impact: potential local memory read/unspecified escalation within the JS heap; exploitation guidance ...

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

This vulnerability affects Firefox < 128 and Thunderbird

CVE-2020-12395

CVE-2020-12395 refers to memory-safety bugs reported in Mozilla Firefox and Thunderbird. Mozilla noted memory corruption in bugs affecting Firefox 75/ESR 68.7 and stated that with enough effort some bugs could be exploited to run arbitrary code. The vulnerability impacts Firefox ESR < 68.8, Fi...

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-2021-38496

CVE-2021-38496 describes a memory-safety issue: during MessageTask operations, a scheduled task could be removed, causing memory corruption and a potentially exploitable crash. Affected products include Thunderbird versions older than 78.15 and 91.2, Firefox ESR older than 91.2 and 78.15, and Fir...

CVE-2024-10465

This vulnerability affects Firefox (versions < 132), Firefox ESR (versions < 128.4), Thunderbird (versions < 128.4 and

CVE-2024-10468

Potential race conditions in IndexedDB could lead to memory corruption , resulting in a potentially exploitable crash. This vulnerability affects Firefox versions earlier than 132 and Thunderbird versions earlier than 132 . No specific exploitation details or remediation steps are provided in the...

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-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-2015-7575

CVE-2015-7575 affects NSS (used by Mozilla Firefox) where MD5 signatures in TLS 1.2 ServerKeyExchange are accepted, enabling potential MITM server impersonation. The published description notes NSS before 3.20.2 and Firefox before 43.0.2 / ESR 38.x before 38.5.2 are impacted. Debian/IBM/AIX advis...

CVE-2021-43538

CVE-2021-43538 is a race condition in the notification code that could allow spoofing by hiding fullscreen/pointer-lock notifications on affected Mozilla products. Affected: Thunderbird < 91.4.0, Firefox ESR < 91.4.0, Firefox

CVE-2023-23603

CVE-2023-23603 describes that Regular expressions used to filter forbidden properties/values from style directives in calls to console.log did not account for external URLs, enabling potential data exfiltration from the browser. Affected: Firefox <= 108/109 and Firefox ESR <= 102.7, Thunder...

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-2018-18500

CVE-2018-18500 is a use-after-free in the HTML5 stream parser when handling custom HTML elements, causing the parser object to be freed while still in use. Affected products include Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox

CVE-2019-9819

The CVE-2019-9819 issue is a JavaScript compartment mismatch involving the fetch API that can cause a crash. Affected products include Thunderbird (and Firefox components) with versions below 60.7 for Thunderbird and below 67 for Firefox/Firefox ESR; impact is described as potentially exploitable...

CVE-2021-23987

CVE-2021-23987 corresponds to memory safety bugs reported in Mozilla Firefox (including Firefox ESR 78.8 branch) that could allow memory corruption and potentially arbitrary code execution. The CVE is stated to affect Firefox ESR < 78.9, Firefox < 87, and Thunderbird

CVE-2021-43539

CVE-2021-43539 is a Mozilla Firefox/Thunderbird memory safety issue: GC rooting failure when calling wasm instance methods can cause a use-after-free and potentially exploitable crash. Connected sources confirm the flaw affects Firefox up to 95 and Thunderbird up to 91.4.0, linked advisories show...

CVE-2024-11701

The Firefox browser (versions < 133) and Thunderbird (versions

CVE-2024-7521

Incomplete WebAssembly exception handling in the Mozilla ecosystem could lead to a use-after-free vulnerability. This issue affects Firefox versions prior to 129, Firefox ESR versions prior to 115.14, 128.1, Thunderbird versions prior to 128.1, and Thunderbird versions prior to 115.14. While the ...

CVE-2024-8389

CVE-2024-8389: Memory safety issues in Firefox 129 affecting Firefox

CVE-2019-11711

CVE-2019-11711 involves reuse of an inner window that neglects document.domain cross-origin protections, enabling script injection across subdomains. Affected software per connected docs: Firefox ESR < 60.8, Firefox < 68, and Thunderbird

CVE-2020-12400

CVE-2020-12400 is an NSS-related timing vulnerability affecting Firefox < 80 and Firefox for Android

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...