CVE-2021-29981

CVE-2021-29981 affects Firefox < 91 and Thunderbird

CVE-2023-29539

Concrete details found: CVE-2023-29539 (Content-Disposition filename truncation on NULL) affects Firefox family and Thunderbird; root cause is NULL character in filename causing truncation and potential Reflected File Download. Connected documents (Astra Linux bulletin, Debian/CentOS advisories) ...

CVE-2025-4918

The Firefox and Thunderbird web browsers are vulnerable to an out-of-bounds read or write on a JavaScript Promise object. This memory safety issue is present in Firefox versions prior to 138.0.4, Firefox ESR versions prior to 128.10.1 and 115.23.1, and Thunderbird versions prior to 128.10.2. The ...

CVE-2021-23991

CVE-2021-23991 affects Thunderbird before 78.9.1. If a user has previously imported Alice’s OpenPGP key and Alice extends its validity but the updated key hasn’t been imported, an attacker can send a crafted version of Alice’s key containing an invalid subkey. Thunderbird may then attempt to use ...

CVE-2021-29948

Thunderbird prior to 78.10.0 is affected by CVE-2021-29948, where signatures are written to disk before verification and may be at risk of a race condition if a local attacker replaces the file. Impact includes potential signature forgery; remediation is to upgrade Thunderbird to 78.10.0 or newer...

CVE-2023-0430

CVE-2023-0430 affects Thunderbird (68–102.7.0) where the OCSP revocation status of S/MIME certificates was not checked during signature verification, causing mail signed with a revoked certificate to appear valid. Public references in the provided documents confirm Thunderbird

CVE-2023-5730

The CVE-2023-5730 entry concerns memory safety bugs in Mozilla Firefox (Firefox 118 and ESR 115.3) and Thunderbird 115.3 that could allow arbitrary code execution. Affected versions are Firefox < 119, Firefox ESR < 115.4, and Thunderbird

CVE-2017-5390

CVE-2017-5390 concerns the JSON viewer in Mozilla/Thunderbird Developer Tools that uses insecure methods to copy/view JSON or HTTP header data, enabling potential privilege escalation. Concrete details in connected docs show this affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox

CVE-2021-29951

CVE-2021-29951 involves the Mozilla Maintenance Service granting SERVICE_START access to BUILTIN|Users, enabling domain users to start/stop the browser update service. Affected: Windows systems older than Windows 10 build 1709; Firefox prior to 87 and Firefox ESR prior to 78.10.1, Thunderbird pri...

CVE-2023-4582

CVE-2023-4582 is a Firefox-on-macOS-specific issue where large allocation checks in Angle for GLSL shaders could overflow a private shader memory allocation, leading to a buffer overflow. The vulnerability affects Firefox versions earlier than 117 (and Firefox ESR < 115.2, Thunderbird

CVE-2023-5724

The connected Astra Linux bulletin confirms CVE-2023-5724: Drivers are not always robust to extremely large draw calls, potentially causing crashes in Firefox before 119, Firefox ESR before 115.4, and Thunderbird before 115.4.1. Affected versions are Firefox <119, Firefox ESR <115.4, Thunde...

CVE-2019-11694

CVE-2019-11694 is a Windows-only vulnerability in the Mozilla Firefox/Thunderbird stack where an uninitialized memory value can leak from a broker into a renderer when accessing an otherwise unavailable file in the Windows sandbox. Affected products include Thunderbird < 60.7, Firefox < 67,...

CVE-2021-23992

Thunderbird is affected by CVE-2021-23992, where an attacker can craft an OpenPGP key by replacing an original user ID or adding another, causing the user to be confused about key ownership. The issue stems from Thunderbird not checking that the OpenPGP key’s user ID has a valid self-signature be...

CVE-2017-5375

CVE-2017-5375 affects Mozilla Thunderbird, Firefox ESR, and Firefox prior to certain version thresholds. The issue is a JIT code allocation vulnerability that can bypass ASLR and DEP, enabling memory corruption. Public exploit activity exists (ASM.JS JIT-Spray PoCs) for multiple Firefox versions ...

CVE-2025-1930

A use-after-free vulnerability exists in the AudioIPC component of Mozilla Firefox , Firefox ESR , and Thunderbird . On Windows , a compromised content process can send malformed StreamData over AudioIPC to trigger this flaw in the Browser process , potentially leading to a sandbox escape . This ...

CVE-2018-12376

CVE-2018-12376 involves memory safety bugs in Firefox 61/ESR 60.1 and Thunderbird

CVE-2019-9794

CVE-2019-9794: Command line arguments are not discarded when Firefox is invoked as a shell handler for URLs on Windows, enabling potential remote file retrieval/execution. Affected: Thunderbird <60.6, Firefox ESR <60.6, Firefox

CVE-2023-5725

CVE-2023-5725 is a documented vulnerability affecting Firefox (before 119), Firefox ESR (before 115.4), and Thunderbird (before 115.4.1). A malicious installed WebExtension could open arbitrary URLs, which under certain conditions could enable collection of sensitive user data. The connected docu...

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-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-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-2022-29913

The CVE-2022-29913 vulnerability affects Thunderbird prior to version 91.9, caused by the parent process not properly checking if Speech Synthesis is enabled when handling commands from a child process. The issue is confirmed in multiple sources (e.g., CentOS/RH advisories and Astra Linux) and is...

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-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-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-2018-12363

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-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-2018-5188

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

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-2018-5150

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-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-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-2018-12364

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-2019-11703

Summary (CVE-2019-11703) : A flaw in Thunderbird’s iCal handling causes a heap buffer overflow in libical’s parser_get_next_char, triggered by processing certain calendar-containing messages. The issue is documented to affect Thunderbird versions prior to 60.7.1, with public reports and advisorie...

CVE-2021-23993

CVE-2021-23993 affects Thunderbird: an attacker can cause encryption to fail by crafting an OpenPGP key with a subkey that has an invalid self-signature. When a user imports such a key, Thunderbird may attempt to use the invalid subkey, but the RNP library rejects it, leading to a DoS on sending ...

CVE-2021-38502

Thunderbird is affected by CVE-2021-38502 where STARTTLS requirements for SMTP were ignored, enabling a MITM to downgrade to an unencrypted connection or hijack an authenticated session and potentially obtain credentials if unprotected methods are configured. Multiple connected advisories confirm...

CVE-2021-38495

CVE-2021-38495 relates to memory safety bugs reported in Mozilla Thunderbird 78.13.0, with evidence of memory corruption and the possibility that, with effort, exploit could lead to arbitrary code execution. The vulnerability affects Thunderbird < 91.1 and Firefox ESR

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-2018-5089

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

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-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-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-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-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-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-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...