CVE-2023-25752

CVE-2023-25752 affects Firefox and Thunderbird due to an out-of-bounds risk when accessing throttled streams. The bug stems from not validating the count of available bytes in the caller, allowing potential memory safety issues. Affected versions include Firefox <111, Firefox ESR <102.9, an...

CVE-2023-6206

CVE-2023-6206 is described across connected sources as a clickjacking-related issue tied to the fullscreen transition in Mozilla Firefox and Thunderbird. The vulnerability affects Firefox versions older than 120, Firefox ESR older than 115.5.0, and Thunderbird older than 115.5.0. The issue is dis...

CVE-2014-1508

CVE-2014-1508 affects Mozilla Firefox family components (libxul) where libxul.so!gfxContext::Polygon can leak memory, cause out-of-bounds reads, or crash, with potential Same Origin Policy bypass via MathML polygon rendering. Affected: Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbir...

CVE-2014-1556

CVE-2014-1556 affects Mozilla Firefox before 31.0, Firefox ESR 24.x before 24.7, and Thunderbird before 24.7. The root cause is a flaw in WebGL content, constructed with the Cesium JavaScript library, that allows remote attackers to execute arbitrary code. Exploitation would occur via crafted Web...

CVE-2016-2796

CVE-2016-2796 describes a heap-based buffer overflow in the Graphite 2 font library (graphite2::vm::Machine::Code::Code) prior to 1.3.6. The vulnerability affected Graphite 2 as used by Mozilla Firefox (before 45.0) and Firefox ESR 38.x (before 38.7), potentially enabling a remote attacker to cau...

CVE-2016-5261

Mozilla Firefox and Firefox ESR are affected by CVE-2016-5261 due to an Integer overflow in the WebSocketChannel class (WebSockets subsystem). The flaw can be triggered by crafted WebSocket packets that cause incorrect buffer-resize operations during buffering, leading to remote code execution or...

CVE-2017-5404

CVE-2017-5404 is a use-after-free in Firefox/Thunderbird when manipulating ranges in selections with one node inside a native anonymous tree and one node outside it, leading to a potentially exploitable crash. Affected: Firefox versions before 52 and Firefox ESR before 45.8; Thunderbird versions ...

CVE-2017-5408

CVE-2017-5408: Cross-origin reading of video captions in Mozilla products due to missing CORS header checks. Affected: Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, Thunderbird

CVE-2017-7826

CVE-2017-7826 ties to memory-safety bugs in Firefox 56/ESR 52.4 and Thunderbird prior to 52.5. Affected versions: Firefox < 57, Firefox ESR < 52.5, Thunderbird

CVE-2017-7828

CVE-2017-7828 describes a use-after-free in Thunderbird/Firefox related to the PressShell object during layout flush and resize, causing potentially exploitable crashes. Affected products include Thunderbird < 52.5.0 and Firefox < 57 (and ESR

CVE-2018-5130

CVE-2018-5130 describes a memory corruption/denial-of-service risk in Mozilla Firefox/WebRTC where receiving packets with a mismatched RTP payload type can crash the browser. The vulnerability affects Firefox ESR versions earlier than 52.7 and standard Firefox versions earlier than 59. Multiple a...

CVE-2019-17020

CVE-2019-17020 affects Firefox before 72.0. The issue is a Content Security Policy bypass where an XML file served with CSP includes an XSL stylesheet, and the CSP is not applied to the XSL contents (e.g., JavaScript), bypassing restrictions on the XML document. Impact is CSP bypass via XSL in XM...

CVE-2023-6860

CVE-2023-6860: The VideoBridge channel allowed a content process to access textures from remote decoders, creating a potential sandbox escape in Firefox ESR <115.6, Thunderbird <115.6, and Firefox

CVE-2013-0788

CVE-2013-0788 concerns multiple unspecified vulnerabilities in the Mozilla Firefox browser engine that can cause memory corruption, a crash, or possibly arbitrary code execution. Affected products include Firefox before 20.0, Firefox ESR 17.x before 17.0.5, Thunderbird before 17.0.5, Thunderbird ...

CVE-2017-5432

CVE-2017-5432 is a use-after-free in Firefox < 53 that can trigger a potentially exploitable crash during certain text-input selection. The vulnerability also affects related Mozilla products in older ESR/thunderbird branches (e.g., Thunderbird < 52.1; ESR

CVE-2023-25730

CVE-2023-25730 describes a browser vulnerability where a background script calling document.documentElement.requestFullscreen and then blocking the main thread can force fullscreen mode indefinitely, potentially causing user confusion or spoofing. The connected documents confirm affected products...

CVE-2023-25742

CVE-2023-25742 : When importing a SPKI RSA public key as ECDSA P-256, the key is handled incorrectly, causing the tab to crash. Affected products per provided docs: Firefox < 110, Thunderbird < 102.8, and Firefox ESR

CVE-2023-28163

CVE-2023-28163 is a Windows-specific Firefox/Thunderbird vulnerability where the Save As dialog incorrectly resolves environment variables in suggested filenames, causing context exposure to the current user. Affected products are Firefox on Windows (Firefox < 111 and ESR < 102.9) and Thund...

CVE-2013-5609

CVE-2013-5609 is a set of memory-corruption/denial-of-service vulnerabilities in the Mozilla Firefox browser engine, affecting Firefox (including ESR 24.x) and related products prior to versions around 26.0 (per the referenced MiracleLinux AXSA advisories). The issues could allow remote attackers...

CVE-2015-4513

The CVE-2015-4513 entry concerns Mozilla Firefox before 42.0 (and ESR 38.x before 38.4) with memory-safety issues in the browser engine that could lead to denial of service or potentially arbitrary code execution via unspecified vectors. Public disclosures in multiple advisories (e.g., IBM Securi...

CVE-2017-5440

CVE-2017-5440 is a use-after-free in XSLT processing caused by failure to propagate error conditions during matching while evaluating context, leading to use of freed objects and potentially a crash. Affected products include Mozilla Firefox (Firefox < 53) and Firefox ESR, and Mozilla Thunderb...

CVE-2020-15666

CVE-2020-15666 affects Firefox before 80 (desktop and Android); the issue is an information-disclosure vulnerability where loading a non-video in an audio/video context leaks the exact HTTP status code via the MediaError Message. This could enable login-status inference to services or local-netwo...

CVE-2020-15680

CVE-2020-15680 affects Firefox ≤ 82.0 where referencing a valid external protocol handler in an image tag lets an attacker probe if a protocol handler is registered by distinguishing broken image sizes. The underlying issue is an information disclosure vulnerability related to image tag handling ...

CVE-2021-23955

CVE-2021-23955 affects Mozilla Firefox (pre-85) where a pointer-lock state could be transferred between tabs, enabling clickjacking. Technical details in the CVE description and multiple advisories confirm the underlying issue is a state transfer between tabs related to requestPointerLock. Impact...

CVE-2023-28164

CWE- style note: CVE-2023-28164 affects Firefox <111, Firefox ESR <102.9, and Thunderbird

CVE-2023-32213

CVE-2023-32213 affects Mozilla Firefox and Thunderbird. The flaw arises when reading a file, where an uninitialized value could be used as the read limit. Affected versions are Firefox <113, Firefox ESR <102.11, and Thunderbird

CVE-2006-1733

CVE-2006-1733 affects Mozilla Firefox and Thunderbird 1.x before 1.5, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0. The flaw is in the compilation scope handling of privileged built‑in XBL bindings, enabling a remote attacker to run arbitrary code via (1) valueOf.call or (2) valueOf.appl...

CVE-2014-1505

CVE-2014-1505 affects Mozilla Firefox (and related Mozilla components) where SVG filter operations in feDisplacementMap could leak displacement-correlation data and potentially bypass Same Origin Policy via a timing attack, enabling partial information disclosure from a different domain. Affected...

CVE-2016-9897

CVE-2016-9897 affects Mozilla Firefox (versions < 50.1) and Firefox ESR (< 45.6) and Thunderbird (

CVE-2016-9901

CVE-2016-9901 affects Mozilla Firefox and Firefox ESR. Un-sanitized HTML from the Pocket server could execute JavaScript in the unprivileged about:pocket-saved context, gaining access to Pocket’s messaging API via HTML injection. Impact stated as high/critical by CVSS. Remediation: update to Fire...

CVE-2018-5129

The CVE-2018-5129 entry relates to a memory-safety/IPC validation issue where a lack of parameter validation on IPC messages can cause an out-of-bounds write, potentially enabling sandbox escape. Affected products include Mozilla Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox

CVE-2021-23985

CVE-2021-23985 affects Mozilla Firefox prior to version 87. The issue involves the ability to alter certain about:config values (e.g., via malware on the user’s machine) that could enable Devtools remote debugging in a way that is unobtrusive to the user, allowing a remote attacker with direct ne...

CVE-2023-29533

CVE-2023-29533 affects Firefox (pre-112, ESR pre-102.10, Android-focused builds pre-112) and Thunderbird (

CVE-2018-5157

CVE-2018-5157 affects Mozilla Firefox prior to 60.0 (including ESR

CVE-2021-23976

The CVE-2021-23976 entry concerns Firefox for Android where accepting a malicious intent from other installed apps allowed manifests from arbitrary file paths and permitting declaring webapp manifests for other origins. This underlies potential fullscreen UI spoofing and cross-origin attacks on t...

CVE-2021-29974

CVE-2021-29974 affects Mozilla Firefox before 90. When network partitioning is enabled (e.g., via Enhanced Tracking Protection), a TLS error page could allow overriding an error on an HSTS domain, violating intended error handling. The issue does not affect network connections, which still upgrad...

CVE-2022-45406

CVE-2022-45406 describes a memory-safety flaw in JavaScript: when an out-of-memory condition occurs during creation of a global, a JavaScript realm can be deleted while references linger in a BaseShape, leading to a use-after-free and potentially exploitable crash. Affected products include Firef...

CVE-2023-32214

CVE-2023-32214 affects Mozilla Firefox and Thunderbird on Windows. The vulnerability involves protocol handlers ms-cxh and ms-cxh-full that could be leveraged to trigger a denial of service. Affected versions are Firefox < 113, Firefox ESR < 102.11, and Thunderbird

CVE-2024-0746

CVE-2024-0746 describes a crash triggered when a Linux user opens the print preview dialog in Mozilla components. Affected products include Firefox (versions before 122) and Firefox ESR (before 115.7) as well as Thunderbird (before 115.7). The issue is reported as a crash scenario in the print-pr...

CVE-2025-4083

A process isolation vulnerability exists in Mozilla Thunderbird and Mozilla Firefox due to improper handling of javascript: URIs. This flaw could allow content to execute within the top-level document's process instead of the intended frame, potentially facilitating a sandbox escape . The vulnera...

CVE-2016-5290

CVE-2016-5290: Memory safety bugs in Firefox 49 and Firefox ESR 45.4 (affecting Thunderbird <45.5, Firefox ESR <45.5, and Firefox

CVE-2017-5433

CVE-2017-5433 is a use-after-free in SMIL animation functions. Affected software includes Mozilla Firefox builds before 53 and Thunderbird before 52.1 ESR; the underlying issue arises when pointers to animation elements in an array are dropped from the animation controller while still in use, lea...

CVE-2017-7753

CVE-2017-7753 is an out-of-bounds read in the rendering path when applying style rules to pseudo-elements (e.g., ::first-line) using cached style data. Affected products/versions include Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox

CVE-2020-26963

CVE-2020-26963 affects Firefox versions earlier than 83. The issue arises from repeated calls to the history and location interfaces, which could be exploited to hang the browser. Mozilla addressed this by introducing rate-limiting on those API calls. The CVSS score in the record is 4.3 (Medium) ...

CVE-2022-22757

CVE-2022-22757 concerns Mozilla Firefox and involves the Remote Agent used in WebDriver not validating the Host or Origin headers. This could allow a website to connect back locally to the user's browser to take control, specifically when WebDriver is enabled (not the default). Affected products ...

CVE-2023-37202

CVE-2023-37202 affects Firefox (including ESR) and Thunderbird. The issue is caused by cross-compartment wrappers wrapping a scripted proxy, which could store objects from other compartments in the main compartment, resulting in a use-after-free. Affected versions are Firefox <115, Firefox ESR...

CVE-2025-4091

Memory safety bugs exist in Firefox and Thunderbird (specifically versions 137 and ESR 128.9). These vulnerabilities involve memory corruption and could potentially be exploited by a determined attacker to execute arbitrary code . The issues are fixed in Firefox 138 , Firefox ESR 128.10 , Thunder...

CVE-2015-0818

CVE-2015-0818 affects Mozilla Firefox (pre-36.0.4), Firefox ESR (pre-31.5.3 for 31.x), and SeaMonkey (pre-2.33.1). The root cause is a flaw in processing SVG hash navigation that bypasses the Same Origin Policy, allowing remote attackers to execute arbitrary JavaScript with chrome privileges. The...

CVE-2015-2724

CVE-2015-2724 involves memory safety bugs in the Mozilla Firefox browser engine (affecting Firefox up to version 39.0, ESR lines older than 31.8/38.1, and Thunderbird before 38.1). The issues allow remote attackers to cause a denial of service via memory corruption or potentially execute arbitrar...

CVE-2020-26952

Mozilla Firefox vulnerability (CVE-2020-26952) involves incorrect bookkeeping of inlined functions during JIT compilation, causing memory corruption and potentially exploitable crashes when handling out-of-memory conditions. Affected: Firefox versions earlier than 83. Root cause: mismanagement in...