CVE-2025-3032

The CVE-2025-3032 entry describes a vulnerability in Firefox and Thunderbird where file descriptors leak from the fork server to web content processes, enabling privilege escalation. Affected products are Firefox and Thunderbird versions prior to 137. The root cause is the unintended propagation ...

CVE-2025-8040

CVE-2025-8040 corresponds to memory-safety bugs in Mozilla Firefox/Thunderbird products (Firefox/Thunderbird 140 line, ESR 140.0 and related versions) with evidence of memory corruption that could potentially lead to arbitrary code execution. Affected components are the Firefox and Thunderbird br...

CVE-2026-8094

CVE-2026-8094 : A vulnerability in the WebRTC component reported in multiple feeds (CVE-2026-8094) affecting Mozilla Firefox ESR builds and Thunderbird. The available documents identify a WebRTC issue but do not provide detailed root cause, impacted products beyond Firefox ESR and Thunderbird, or...

CVE-2017-5425

CVE-2017-5425 : The Gecko Media Plugin sandbox allowed access to local files via regex-matched paths. In OS X, this could expose data in subdirectories of “/private/var” for Firefox < 52 and Thunderbird

CVE-2017-7761

Summary: CVE-2017-7761 affects Firefox on Windows (Firefox ESR < 52.2 and Firefox

CVE-2017-7766

CVE-2017-7766 is a local privilege-escalation path in Windows Mozilla updater components. An attacker who already has local access can manipulate updater.ini to abuse the Mozilla Windows Updater and Mozilla Maintenance Service, gaining privileged access to execute arbitrary files or delete files....

CVE-2020-12412

This CVE (CVE-2020-12412) affects Mozilla Firefox prior to version 70, where navigating a tab via the History API could spoof the address bar to display an incorrect domain (https scheme, blocked port, no lock icon) while the page content is controlled. The vulnerability enables spoofing of the v...

CVE-2025-27426

CVE-2025-27426 affects Firefox for iOS

CVE-2025-4086

CVE-2025-4086 affects Thunderbird for Android and Firefox/ Thunderbird versions earlier than 138. The issue is triggered by a filename containing a large number of encoded newline characters that can obscure the file extension in the download dialog, potentially misleading users about the downloa...

CVE-2026-12293

CVE-2026-12293 is a use-after-free in the Graphics: WebGPU component. The flaw is fixed in Firefox 152 and Thunderbird 152. Sources from NVD/Mozilla advisories confirm the issue and the patch versions; exploit details are not provided in the supplied documents. The vulnerability is classified wit...

CVE-2026-6765

CVE-2026-6765 affects Firefox and Thunderbird. The vulnerability is an information disclosure in the Form Autofill component. Root cause details are not provided beyond disclosure, but the issue is mitigated by fixes in Firefox 150 , Firefox ESR 140.10 , Thunderbird 150 , and Thunderbird 140.10 ....

CVE-2009-4630

Mo zilla Necko (Firefox, SeaMonkey and related apps) exposes a DNS prefetching flaw where domain names in links in local HTML are resolved, enabling remote observers to log DNS requests and infer user network location. Root cause: prefetching by the Necko DNS resolver. Impact: information disclos...

CVE-2012-4218

CVE-2012-4218 involves a use-after-free in Mozilla Firefox’s BuildTextRunsScanner::BreakSink::SetBreaks, affecting Firefox < 17.0, Thunderbird < 17.0, and SeaMonkey

CVE-2012-5354

CVE-2012-5354 is covered by details in connected advisories/plugins. The open-connected sources show that Mozilla Firefox before 16.0, Mozilla Thunderbird before 16.0, and SeaMonkey before 2.13 are vulnerable to a clickjacking-style issue when navigating away from a page that has an active set of...

CVE-2017-7768

CVE-2017-7768: Local privilege issue where an unprivileged user can read 32 bytes from any local file via Mozilla Maintenance Service by convincing it to read a status file from the Windows updater. Affected: Firefox ESR < 52.2 and Firefox

CVE-2026-6755

CVE-2026-6755 describes a mitigation bypass in the DOM: postMessage component. Affected products reference Mozilla Firefox and Thunderbird; the vulnerability was fixed in Firefox 150 and Thunderbird 150. The CVSSv3.1 base score is 6.5 (Network attack vector, Low attack complexity, Privileges requ...

CVE-2026-6758

CVE-2026-6758: Use-after-free in the JavaScript: WebAssembly component. Affected: Firefox and Thunderbird; fixed in Firefox 150 and Thunderbird 150. CVSS v3.1 base score 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). No explicit exploit details provided in the connected documents.

CVE-2011-2669

CVE-2011-2669 affects Mozilla Firefox prior to 3.6 due to an issue in certificate validation that can trigger a denial-of-service. Connected sources (e.g., JVN entries) confirm the vulnerability stems from how certificates are validated, with impact described as DoS when loading HTTPS sites with ...

CVE-2025-5271

Summary : CVE-2025-5271 corresponds to a vulnerability where Devtools’ preview of responses failed to enforce CSP headers, potentially enabling content-injection attacks. The public records indicate affected products include Mozilla Firefox version prior to 139 and Mozilla Thunderbird prior to 13...

CVE-2025-9183

CVE-2025-9183 describes a spoofing vulnerability in Firefox and Firefox ESR, caused by a flaw in the Address Bar component that can enable spoofing. Affected versions are Firefox < 142 and Firefox ESR

CVE-2026-12292

CVE-2026-12292 : Incorrect boundary conditions in the Web Audio component are fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. Affected software is Mozilla Firefox/Thunderbird Web Audio implementation; mitigation is upgrade to the stated fixed versions. Other con...

CVE-2026-16390

CVE-2026-16390 describes a mitigation bypass in the Firefox Enterprise Policies component. The vulnerability is indicated as fixed in Firefox 153 and Firefox ESR 140.13. The initial entry provides a CVSS 3.1 base score of 9.1 (CRITICAL) with network attack vector, low attack complexity, and no us...

CVE-2021-43533

CVE-2021-43533 affects Firefox versions prior to 94. Root cause: during internationalized domain name parsing, high bits of URL characters could be stripped, causing display/inconsistency that could enable phishing or user confusion. Impact: user interaction required; potential phishing risk due ...

CVE-2026-6753

CVE-2026-6753 : This is a memory/boundary-condition vulnerability in the WebRTC component. The initial report identifies the root cause as incorrect boundary conditions in the WebRTC component, with an impact profile of Confidentiality, Integrity, and Availability all rated Low, and an overall CV...

CVE-2026-6779

CVE-2026-6779 refers to an “Other issue in the JavaScript Engine component” that affects Firefox and Thunderbird. The vulnerability was fixed in Firefox 150 and Thunderbird 150; Fedora advisories also call for updates to NSS and Firefox 150 across affected distros. The connected docs do not provi...

CVE-2011-3003

CVE-2011-3003 affects Mozilla Firefox < 7.0 and SeaMonkey

CVE-2021-29958

CVE-2021-29958 affects Firefox for iOS prior to 34. The issue occurs when a download starts without verifying if the browser is in normal or private mode, causing private-mode cookies to be exposed in normal browsing. This is a client-side handling flaw in the download flow that can lead to leaka...

CVE-2026-16355

JIT miscompilation in the JavaScript Engine (JIT component) for Mozilla Firefox ESR and Firefox affects Firefox ESR releases earlier than 115.38. The issue is fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. Affected entries from multiple sources confirm the vulnerability is tied...

CVE-2026-8959

CVE-2026-8959 describes a sandbox escape caused by incorrect boundary conditions in the Widget: Win32 component. The vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. CVSS 3.1 base metrics indicate a Network attacker, no privileges required, but ...

CVE-2025-23108

Summary (CVE-2025-23108) : Affects Firefox for iOS ≤ 134. Opening a JavaScript link in a new tab via long-press could allow a malicious script to spoof the URL shown in the new tab, potentially misleading users. Root cause described as a tab URL spoofing issue in the iOS client. Exploitation deta...

CVE-2026-12291

CVE-2026-12291 is a use‑after‑free defect in the Networking: HTTP component that affects Firefox and Thunderbird products. The vulnerability is fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. The CVSS 3.1 base score is 8.8 (HIGH) with network...

CVE-2026-16350

CVE-2026-16350 affects Mozilla Firefox and Firefox ESR (Audio/Video: cubeb). The issue is caused by incorrect boundary conditions in cubeb, with a remediation by upgrading to Firefox 153, Firefox ESR 115.38, or Firefox ESR 140.13. Public CVSS 3.1 vector indicates NETWORK attack, no user interacti...

CVE-2026-16368

CVE-2026-16368: Affects Firefox JavaScript/WebAssembly component due to incorrect boundary conditions. Root cause described as boundary-condition flaw with all three security properties potentially impacted (high confidentiality, integrity, availability). Public fixed versions: Firefox 153 and Fi...

CVE-2026-6761

CVE-2026-6761 — Privilege escalation in the Networking component (Microsoft/ Mozilla naming in documents shows Firefox/Thunderbird exposure). Affected products include Firefox (fixed in Firefox 150 and Firefox ESR 140.10) and Thunderbird (fixed in Thunderbird 150 and Thunderbird 140.10). The CVSS...

CVE-2026-6762

CVE-2026-6762 is a spoofing issue in the DOM: Core & HTML component. Connected advisories confirm it affects Firefox/Thunderbird stacks and was fixed in Firefox 150, ESR 115.35, ESR 140.10, Thunderbird 150, and Thunderbird 140.10. The CVSS 3.1 base score is 6.3 (MEDIUM) with NETWORK attack vector...

CVE-2017-5452

CVE-2017-5452 affects Firefox for Android prior to version 53. The issue allows a spoofed address bar on a page when the new page’s location bar is scrolled out of view if an HTML editable element is user-selected. Remediation per the advisory is upgrading to Firefox 53 or newer (the fixed versio...

CVE-2026-6750

CVE-2026-6750 is a privilege-escalation in the Graphics: WebRender component affecting Mozilla Firefox/Firefox ESR and Thunderbird. The vulnerability is fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10 (with Thunderbird 150 and Thunderbird 140.10 also listed in the advisory set). ...

CVE-2026-6763

CVE-2026-6763 is a mitigation bypass in the File Handling component that was fixed in Firefox 150 and Firefox ESR 140.10, and in Thunderbird 150 and Thunderbird 140.10. Connected advisories (ALAS2FIREFOX-2026-058, ALSA-2026:19348, ALSA-2026:15892, ALSA-2… etc.) corroborate that Thunderbird/firefo...

CVE-2007-2176

CVE-2007-2176 affects Mozilla Firefox with an unspecified vulnerability involving Javascript errors that allows remote code execution. The NVD entry reports a CVSS v2 base score of 10.0 (High) with network attack vector and near-total impact (Confidentiality, Integrity, Availability). The descrip...

CVE-2009-4129

Technical details about CVE-2009-4129 are not publicly provided in the supplied documents. No concrete information on affected products, versions, impact, or fixes is present here. Monitor for updates from official advisories and vulnerability feeds.

CVE-2026-16361

CVE-2026-16361 affects Firefox ESR 115.37 and 140.12, described as memory safety bugs with evidence of memory corruption. The advisory notes these could have been exploited to run arbitrary code, and fixes are applied in Firefox ESR 115.38 and 140.13. Affected components/roots are not detailed be...

CVE-2026-16391

Information disclosure in Firefox’s Storage: IndexedDB component (CVE-2026-16391) is addressed in Firefox 153 and Firefox ESR 140.13. The CVSSv3.1 vector indicates an unaltered scope, network attack vector, high confidentiality impact with no impact to integrity/availability, and no user interact...

CVE-2026-2783

CVE-2026-2783 is a JIT miscompilation information-disclosure vulnerability in the JavaScript Engine (JIT component) that affects Firefox and Thunderbird products. Public details in connected advisories state the issue arises from JIT miscompilation, enabling information disclosure, and indicate f...

CVE-2026-12290

A memory-safety vulnerability affecting Mozilla Thunderbird and related Firefox components has been fixed in Thunderbird 152 and Firefox 152 (and ESR branches 140.12 and 115.37). The CVE-2026-12290 entry, and associated related CVEs cited in SUSE/OSV/Debian/Bugzilla/MFSA advisories, indicate a me...

CVE-2026-16360

Memory safety bugs found in Mozilla Firefox ESR 115.37, Firefox ESR 140.12, and Firefox 152, with evidence of memory corruption and potential remote code execution. The issues were fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. Affected product family: Mozilla Firefox ESR (olde...

CVE-2026-6759

CVE-2026-6759 is a use-after-free in the Mozilla Widget: Cocoa component. Affected products include Firefox and Thunderbird; the vulnerability was fixed in Firefox 150 and Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. This is confirmed across multiple connected advisories and CVE l...

CVE-2007-4013

CVE-2007-4013 covers multiple unspecified vulnerabilities in Net6Helper.DLL (Net6Launcher Class, 4.5.2 and earlier) and in npCtxCAO.dll (Citrix Endpoint Analysis Client) in a Firefox plugin directory, plus a second npCtxCAO.dll (CAAOControl Object) in Citrix Access Gateway Standard Edition before...

CVE-2020-15651

The CVE-2020-15651 issue affects Firefox for iOS prior to 28. A Unicode RTL order character in the downloaded file name can be used in the download UI flow to rename the file and change its extension. Connected sources confirm the vulnerability and indicate Mozilla fixed it in Firefox iOS 28 (MFS...

CVE-2025-8044

CVE-2025-8044 corresponds to memory safety bugs found in Firefox 140 and Thunderbird 140, with memory corruption evidence and a potential to allow arbitrary code execution. Affected products are Firefox and Thunderbird versions earlier than 141. The consolidated sources indicate the issues are me...

CVE-2026-12296

CVE-2026-12296 describes a sandbox escape in the Security: Process Sandboxing component. Affected products include Mozilla Firefox and Firefox ESR, and Mozilla Thunderbird with fixes implemented in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. The description does not ...