CVE-2020-6824

CVE-2020-6824 affects Firefox before version 75. The issue is a privacy/credential handling bug where passwords generated in a private browsing window could be reused in a subsequent private window for the same site, yielding identical passwords instead of independent ones. Root cause: state reta...

CVE-2022-34475

Mozilla Firefox vulnerability CVE-2022-34475 involves SVG tags referencing a same-origin document that could lead to script execution if attacker input is sanitized via the HTML Sanitizer API. Affected product: Firefox prior to version 102. Root cause: improper handling of in combination with s...

CVE-2012-4930

The CVE-2012-4930 issue affects the SPDY protocol (v3 and earlier) as used by Firefox, Chrome, and other products. It allows a man-in-the-middle to observe length-based side channels of TLS-compressed data to potentially recover plaintext HTTP headers (CRIME attack). Root cause: TLS compression w...

CVE-2018-12390

CVE-2018-12390 corresponds to memory-safety bugs in Mozilla Firefox and Thunderbird prior to patched versions. Affected: Firefox < 63, Firefox ESR < 60.3, Thunderbird

CVE-2018-5158

CVE-2018-5158: Firefox PDF viewer has insufficient sanitization of PostScript calculator functions, enabling injection of malicious JavaScript via crafted PDFs. Impact affects Firefox ESR < 52.8 and Firefox

CVE-2021-29987

CVE-2021-29987 describes a UI permission trick where after requesting multiple permissions and closing the first panel, subsequent panels appear in a different position but still register a click in the default location, potentially causing a user to grant unwanted permissions. Technical details ...

CVE-2023-5175

The CVE-2023-5175 issue affects Mozilla Firefox pre-118 releases. The vulnerability stems from an ImageBitmap being created during process shutdown that could later be used after being freed via a different codepath, resulting in a potentially exploitable crash (use-after-free/memory safety conce...

CVE-2018-12363

CVE-2018-12363 is a use-after-free vulnerability in Firefox/Thunderbird caused by mutation events moving DOM nodes between documents. The old document may be freed while a stale pointer remains, potentially enabling a crash. Public references show affected products include Thunderbird versions ol...

CVE-2022-46882

CVE-2022-46882 is a use-after-free in WebGL extensions that could cause a crash in affected Mozilla products. Affected software include Firefox versions before 107 and Firefox ESR before 102.6, and Thunderbird before 102.6. The connected documents identify the underlying issue as a use-after-free...

CVE-2023-4576

CVE-2023-4576 affects Mozilla Firefox on Windows, where an integer overflow in RecordedSourceSurfaceCreation can cause a heap buffer overflow potentially leaking data and enabling sandbox escape. Affected products/versions listed include Firefox on Windows and Firefox/Thunderbird releases older t...

CVE-2023-5731

CVE-2023-5731 covers memory safety bugs in Firefox 118 that may allow arbitrary code execution; affected product branch is Firefox versions before 119. Connected sources confirm these memory corruption-style issues and indicate exploitation would require sufficient effort, with no public exploit ...

CVE-2014-1528

CVE-2014-1528 affects Cairo/Pixman used by Firefox 28.0 and SeaMonkey 2.25 on Windows. The vulnerability is in sse2_composite_src_x888_8888 and is an out-of-bounds write, which the initial description states can enable remote arbitrary code execution or cause a denial of service (application cras...

CVE-2015-7181

CVE-2015-7181 affects the NSS library: the sec_asn1d_parse_leaf function in NSS before 3.19.2.1 and 3.20.x before 3.20.1 improperly restricts access to an unspecified data structure, enabling a remote attacker to crash the application or potentially execute arbitrary code via crafted OCTET STRING...

CVE-2022-3266

CVE-2022-3266 is an out-of-bounds read in H.264 video decoding that can trigger a crash. Affected products in the provided documents include Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox

CVE-2018-12362

CVE-2018-12362 is an integer overflow in the SSSE3 scaler used during graphics operations, affecting Thunderbird and Firefox variants prior to specific versions (e.g., Thunderbird < 52.9, Firefox ESR < 60.1, Firefox

CVE-2018-12365

CVE-2018-12365 is a vulnerability where a compromised IPC child process can escape the content sandbox and list names of arbitrary files on the file system without user consent. It affects Thunderbird (versions below 60, including 52.9) and Firefox-based products (Firefox ESR < 60.1/52.9, Fire...

CVE-2018-5150

CVE-2018-5150 concerns memory safety bugs in Firefox 59/ESR 52.7 and Thunderbird 52.7, with potential memory corruption that could allow arbitrary code execution. Affected products include Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR

CVE-2018-5188

CVE-2018-5188 involves memory safety bugs in Firefox 60/ESR 60 and Thunderbird

CVE-2019-11748

CVE-2019-11748 affects Firefox WebRTC permissions: persisted access to microphone/camera could be exploited when in a third‑party context. Root cause: permissions were kept across navigations, enabling invisibly embedded resources to reuse user consent. Impact: user prompts are now required per u...

CVE-2011-3000

Affected software: Mozilla Firefox before 3.6.23 and 4.x through 6; also affects Thunderbird before 7.0 and SeaMonkey before 2.4. Root cause: HTTP response handling flaw that allows HTTP response splitting when responses contain multiple Location, Content-Length, or Content-Disposition headers. I...

CVE-2018-12364

The CVE-2018-12364 entry affects Thunderbird and was mitigated in various distributions through Thunderbird 52.9.1 and related security advisories. The connected documents confirm concrete details: NPAPI plugins (e.g., Flash) can bypass CORS by issuing a same-origin POST that redirects (307) to t...

CVE-2022-40962

CVE-2022-40962 is a memory safety issue in Firefox 104 and Firefox ESR 102.2 reported by Mozilla Fuzzing Team. The connected documents confirm memory corruption indicators and state that, with enough effort, some bugs could be exploited to run arbitrary code. The vulnerability affects Firefox ESR...

CVE-2018-5089

CVE-2018-5089 is a memory-safety vulnerability affecting Mozilla products: Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox

CVE-2021-29982

CVE-2021-29982 affects Firefox and Thunderbird prior to version 91. Root cause: incorrect JIT optimization causing type confusion, leading to potential leakage of a single memory bit. Connected advisories confirm the issue and describe remediation as upgrading to Firefox/Thunderbird version 91 or...

CVE-2018-12359

CVE-2018-12359 is a buffer overflow in rendering canvas content when dynamically adjusting the height/width, potentially causing a crash. Affected: Thunderbird and Firefox variants (e.g., Thunderbird < 52.9, Firefox ESR < 60.1, Firefox

CVE-2018-12386

Summary: CVE-2018-12386 is a type-confusion vulnerability in Mozilla Firefox/Firefox ESR related to JavaScript register allocation, which can lead to an arbitrary read/write and remote code execution in the sandboxed content process. Affected versions: Firefox ESR before 60.2.2 and Firefox before...

CVE-2021-38492

CVE-2021-38492 affects Mozilla Firefox on Windows, where delegating navigations to the OS could accept mk: URLs and load Internet Explorer in unprivileged mode. The vulnerability impacts Firefox versions older than 92 (and related Thunderbird/ ESR lines). Remediation is to upgrade to Firefox 92+ ...

CVE-2023-29541

The CVE-2023-29541 issue concerns Firefox on Linux (and Thunderbird) where downloads of files ending with .desktop could be interpreted as commands, enabling attacker-controlled execution. Public advisories show affected products as Firefox (Linux) older than 112, Thunderbird older than 102.10, a...

CVE-2018-5104

CVE-2018-5104 is a use-after-free in font-face manipulation that can trigger a crash when a font face is freed while still in use. Affected products include Mozilla Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox

CVE-2019-11736

CVE-2019-11736 describes a local-privilege-escalation vulnerability in the Mozilla Maintenance Service on Windows. The issue arises because the service does not guard against hardlinks in the updates directory, enabling replacement of local files (including the Maintenance Service executable) and...

CVE-2022-28288

CVE-2022-28288 concerns memory-safety bugs in Firefox 98 that could allow arbitrary code execution. The connected Mozilla advisories (MFSA2022-13) enumerate multiple issues, including use-after-free in NSSToken/WebAuthN handling, out-of-bounds access in various components, and other memory-safety...

CVE-2022-34472

CVE-2022-34472 : If a PAC URL is configured and the PAC host is unreachable, OCSP requests are blocked, leading to incorrect error pages being shown. Affected: Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, Thunderbird

CVE-2022-46871

CVE-2022-46871 is tied to an out-of-date libusrsctp library in Firefox prior to version 108. The vulnerability affects Firefox and is rated HIGH (CVSSv3.1: 8.8) with NETWORK attack vector, LOW complexity, no privileges required, user interaction needed, and potential HIGH impact on confidentialit...

CVE-2023-5173

CVE-2023-5173 affects Firefox in non-standard configurations where the non-HTTPS Alternate Services preference is enabled (network.http.altsvc.oe). The issue is an integer overflow that can cause an out-of-bounds write into privileged process memory, with impact described as high and specific to ...

CVE-2019-17021

CVE-2019-17021 describes a race condition during the initialization of a new content process in Firefox on Windows that can disclose heap addresses from the parent process. Affected products are Firefox ESR < 68.4 and Firefox

CVE-2020-6823

The CVE-2020-6823 entry concerns Mozilla Firefox (affected versions: below 75). A malicious extension could call browser.identity.launchWebAuthFlow, allowing control of the redirect_uri and through the returned Promise obtain an OAuth authorization code, enabling the attacker to access the user’s...

CVE-2022-34481

The CVE-2022-34481 entry describes an integer overflow in nsTArray_Impl::ReplaceElementsAt() that could occur when replacing too many elements, affecting Firefox <102, Firefox ESR <91.11, Thunderbird <102, and Thunderbird

CVE-2013-1670

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox (before 21.0, ESR 17.x before 17.0.6), Thunderbird (before 17.0.6), and Thunderbird ESR (before 17.0.6) contains a vulnerability where it fails to prevent the acquisition of chrome privileges during calls to content level construct...

CVE-2018-12366

CVE-2018-12366 describes an out-of-bounds read during QCMS color profile transformations caused by an invalid grid size. The vulnerability could leak private data in output. Affected products/versions include Thunderbird (and Firefox components) before specific fixed releases: Debian/CentOS advis...

CVE-2018-12377

CVE-2018-12377 is a use-after-free vulnerability that can occur when refresh driver timers are refreshed during shutdown, potentially causing a crash when the timer is deleted while still in use. The issue affects Thunderbird versions prior to 60.2.1 (and related Firefox/ESR components). The docu...

CVE-2019-17015

CVE-2019-17015 is a Windows-only memory corruption issue during the initialization of a new content process in Mozilla Firefox ESR < 68.4 and Firefox

CVE-2020-15648

CVE-2020-15648 involves a framing bypass: using object/embed tags could frame other sites even if X-Frame-Options blocks framing. Affected: Firefox < 78.0.2 and Thunderbird

CVE-2022-31742

CVE-2022-31742 describes a timing-attack flaw in WebAuthn: an attacker could send many allowCredential entries and distinguish valid vs invalid key handles, enabling cross-origin account linking. Affected products in the provided records are Thunderbird < 91.10, Firefox < 101, and Firefox ESR

CVE-2023-4052

CVE-2023-4052 affects Firefox on Windows and Thunderbird < 115.1. The root cause is a Firefox updater directory that is writable by non-privileged users; during uninstall, files in that directory can be recursively deleted with the uninstall user’s permissions. This could enable arbitrary file...

CVE-2025-1932

Mozilla Firefox , Firefox ESR , and Thunderbird are vulnerable to an out-of-bounds access issue caused by an inconsistent comparator in the xslt/txNodeSorter component. This vulnerability affects versions 122 and later. Successful exploitation could allow an attacker to influence the confidential...

CVE-2025-49710

Mozilla Firefox versions prior to 139.0.4 are vulnerable to an integer overflow in the OrderedHashTable component used by the JavaScript engine . This input validation error could allow a remote attacker to execute arbitrary code . The vulnerability was addressed in Firefox version 139.0.4 .

CVE-2025-5020

A security vulnerability in Mozilla Firefox for iOS (prior to version 139 ) allows attackers to spoof website addresses . This occurs when the browser processes maliciously-crafted URLs opened from other applications, such as Safari, that utilize non-HTTP schemes used internally by the Firefox iO...

CVE-2022-46874

CVE-2022-46874 describes a filename truncation issue where a long filename could lose its valid extension, leaving a malicious extension that could confuse users or lead to execution of malicious code. Public reports indicate affected products include Firefox versions before 108 and Thunderbird v...

CVE-2023-4054

CVE-2023-4054 affects Firefox on Windows (Firefox < 116; ESR < 102.14, 115.1) and Thunderbird

CVE-2025-4919

Mozilla Firefox and Thunderbird are affected by an out-of-bounds read or write vulnerability in a JavaScript object . The root cause is triggered by confusing array index sizes during operations. This security flaw could potentially lead to memory corruption. Remediation is available in Firefox 1...