CVE-2017-5438

CVE-2017-5438 is a use-after-free in XSLT processing caused by the result handler being held by a freed handler. Publicly documented impact includes crashes and potential code execution in affected Mozilla products. Affected: Firefox

CVE-2017-5439

CVE-2017-5439 is a use-after-free in XSLT processing caused by improper handling of template parameters (nsTArray Length()) in Mozilla code, affecting Firefox and Thunderbird. It targets Firefox < 53 (and related ESR branches) and Thunderbird

CVE-2017-5464

CVE-2017-5464 affects Mozilla products: 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-2017-7843

Summary (CVE-2017-7843) : In Firefox, Private Browsing mode could be exploited by a web worker to persist data in IndexedDB, enabling cross-session fingerprinting. Affected are Firefox ESR versions older than 52.5.2 and Firefox versions older than 57.0.1. The root cause is that IndexedDB remains ...

CVE-2021-29983

CVE-2021-29983 affects Firefox for Android (reported as affecting Firefox

CVE-2023-32212

The CVE-2023-32212 issue is a UI spoofing vulnerability in Mozilla Firefox and Thunderbird where an attacker could position a datalist element to obscure the address bar. Affected products include Firefox versions before 113, Firefox ESR before 102.11, and Thunderbird before 102.11. The connected...

CVE-2017-7784

The CVE-2017-7784 issue is a use-after-free in the image observer during frame reconstruction after the observer has been freed, affecting Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox

CVE-2022-40957

In Firefox on ARM64, CVE-2022-40957 is caused by inconsistent data in the instruction and data caches while building WebAssembly code, leading to a potentially exploitable crash. Affected products include Firefox on ARM64 and Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox

CVE-2023-37201

CVE-2023-37201 is a WebRTC-related use-after-free in Firefox/Thunderbird: an attacker could trigger memory corruption during HTTPS WebRTC setup. Affected: Firefox <115, Firefox ESR <102.13, Thunderbird

CVE-2023-6856

CVE-2023-6856 describes a heap-buffer-overflow in the WebGL DrawElementsInstanced path when run with the Mesa VM driver. Impacted products include Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox

CVE-2024-0750

CVE-2024-0750 affects Firefox (versions prior to 122) and Thunderbird (prior to 115.7), with the issue described as a bug in popup notifications delay calculation that could allow a user to be tricked into granting permissions. Connected advisories confirm the vulnerability and link it to Mozilla...

CVE-2016-9898

CVE-2016-9898 is a use-after-free vulnerability in Mozilla Firefox/Thunderbird affecting Firefox <50.1, Firefox ESR <45.6, and Thunderbird

CVE-2017-5407

CVE-2017-5407 describes a information-disclosure flaw in SVG filters due to floating-point timing side channels that can leak pixel data and history across origins. Affected products include Mozilla Firefox and Thunderbird versions older than 52 (Firefox ESR older than 45.8; Thunderbird older tha...

CVE-2017-5445

CVE-2017-5445 describes a memory-read vulnerability in Mozilla products when parsing the application/http-index-format content, caused by uninitialized values used to create an array. The impact is information disclosure by reading uninitialized memory in affected components. Affected versions pe...

CVE-2017-7792

The CVE-2017-7792 issue affects Thunderbird (< 52.3), Firefox ESR (< 52.3), and Firefox (

CVE-2019-11701

CVE-2019-11701 affects Mozilla Firefox prior to 67.0. The issue is caused by the default webcal: protocol handler loading a vulnerable site, enabling cross-site scripting (XSS) attacks. Impact per sources includes potential script execution within the browser context and possible credential theft...

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-2022-36316

CVE-2022-36316 affects Mozilla Firefox

CVE-2023-29535

CVE-2023-29535: The vulnerability arises from a garbage collector compaction issue in Firefox/related products where a weak map could be accessed before proper tracing, leading to memory corruption and a potentially exploitable crash. Affected software per documents includes Firefox (and derivati...

CVE-2023-32211

CVE-2023-32211 describes a type checking bug in Mozilla Firefox and Thunderbird that could lead to invalid code being compiled. The connected documents confirm the flaw affects Firefox versions prior to 113, Firefox ESR prior to 102.11, and Thunderbird prior to 102.11. Multiple security advisorie...

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-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-2017-5432

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-2018-5157

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

CVE-2021-23958

CVE-2021-23958 affects Mozilla Firefox versions before 85. The issue could confuse the browser into transferring a screen sharing state between tabs, potentially leaking screen sharing permissions/information. Affected product: Firefox (pre-85). Underlying cause: state transfer between tabs durin...

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-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-2023-25731

CVE-2023-25731 affects Mozilla Firefox prior to 110, where URL previews in the network panel’s developer tools could allow query parameters to overwrite global objects in privileged code. The issue is confirmed by multiple sources stating Firefox

CVE-2025-5268

CVE-2025-5268 is a memory-safety vulnerability affecting Firefox and Thunderbird. The advisory notes memory-safety bugs in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10, with evidence of memory corruption. It is stated that some bugs could, with enough effort, be exploi...

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-2017-5428

CVE-2017-5428 is an integer overflow in Mozilla Firefox’s createImageBitmap() that was disclosed via Pwn2Own. Affected products include Firefox (and ESR) versions older than 52.0.1; the issue arises from oversized image offset/length/layout arguments to createImageBitmap, which could enable remot...

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-2017-7810

CVE-2017-7810 refers to memory-safety bugs reported in Firefox 55 and Firefox ESR 52.3, with potential to exploit memory corruption to run arbitrary code. Connected documents confirm that Thunderbird

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-2021-23976

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-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-2023-25752

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-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-2017-5408

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-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-2022-22744

CVE-2022-22744 affects Thunderbird for Windows via the DevTools Copy as curl feature, where the constructed curl command was not properly escaped for PowerShell, potentially allowing command injection when pasted into a PowerShell prompt. Public details indicate affected software includes Thunder...

CVE-2023-4058

CVE-2023-4058 involves memory-safety bugs in Mozilla Firefox. The connected docs consistently indicate these flaws are in Firefox 115 and earlier, with the impact described as potential memory corruption that could be exploited to run arbitrary code, i.e., a high-severity, remote-style risk if ex...

CVE-2012-4186

CVE-2012-4186 : Heap-based buffer overflow in Mozilla Firefox’s nsWaveReader::DecodeAudioData. Affected products include Firefox before 16.0 (and Firefox ESR 10.x before 10.0.8), Thunderbird before 16.0, and SeaMonkey before 2.13. Vectors are unspecified in the provided docs, but exploitation wou...

CVE-2016-9902

The CVE-2016-9902 entry concerns Mozilla Firefox/Firefox ESR where the Pocket toolbar button incorrectly accepts events from any origin without verifying the event source. The vulnerability arises from the button listening for events fired from its own pages but not validating the origin, enablin...

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-2018-5127

The CVE-2018-5127 issue is a memory-safety buffer overflow in the SVG path handling (svg animatedPathSegList) triggered via script, allowing a potentially exploitable crash. Affected products and versions include Thunderbird < 52.7, Firefox ESR < 52.7, and Firefox

CVE-2018-5147

CVE-2018-5147 references the same flaw as CVE-2018-5146, arising from an out-of-bounds write in Vorbis processing, with libtremor used by Firefox on Android/ARM. The initial description notes impact on Firefox ESR < 52.7.2 and Firefox

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-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...