Vulnerabilities (CVE)

Filtered by vendor Mozilla Subscribe
Filtered by product Firefox
Total 3337 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2025-0237 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 5.4 MEDIUM
The WebChannel API, which is used to transport various information across processes, did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks. This vulnerability was fixed in Firefox 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6.
CVE-2024-9936 1 Mozilla 1 Firefox 2026-06-17 N/A 6.5 MEDIUM
When manipulating the selection node cache, an attacker may have been able to cause unexpected behavior, potentially leading to an exploitable crash. This vulnerability affects Firefox < 131.0.3.
CVE-2024-9403 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 7.3 HIGH
Memory safety bugs present in Firefox 130. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 131 and Thunderbird < 131.
CVE-2024-9402 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 130, Firefox ESR 128.2, and Thunderbird 128.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9401 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 130, Firefox ESR 115.15, Firefox ESR 128.2, and Thunderbird 128.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9400 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 8.8 HIGH
A potential memory corruption vulnerability could be triggered if an attacker had the ability to trigger an OOM at a specific moment during JIT compilation. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9399 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 7.5 HIGH
A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a denial of service condition. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9398 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 5.3 MEDIUM
By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9397 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 6.1 MEDIUM
A missing delay in directory upload UI could have made it possible for an attacker to trick a user into granting permission via clickjacking. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9396 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 8.8 HIGH
It is currently unknown if this issue is exploitable but a condition may arise where the structured clone of certain objects could lead to memory corruption. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9395 1 Mozilla 1 Firefox 2026-06-17 N/A 5.3 MEDIUM
A specially crafted filename containing a large number of spaces could obscure the file's extension when displayed in the download dialog. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 131.
CVE-2024-9394 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 7.5 HIGH
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin. This could allow them to access cross-origin JSON content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9393 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 7.5 HIGH
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://pdf.js` origin. This could allow them to access cross-origin PDF content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is possible on Android versions. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9392 1 Mozilla 2 Firefox, Thunderbird 2026-06-17 N/A 9.8 CRITICAL
A compromised content process could have allowed for the arbitrary loading of cross-origin pages. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Firefox ESR < 115.16, Thunderbird < 128.3, and Thunderbird < 131.
CVE-2024-9391 1 Mozilla 1 Firefox 2026-06-17 N/A 6.5 MEDIUM
A user who enables full-screen mode on a specially crafted web page could potentially be prevented from exiting full screen mode. This may allow spoofing of other sites as the address bar is no longer visible. *This bug only affects Firefox Focus for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 131.
CVE-2024-8900 1 Mozilla 1 Firefox 2026-06-17 N/A 7.5 HIGH
An attacker could write data to the user's clipboard, bypassing the user prompt, during a certain sequence of navigational events. This vulnerability affects Firefox < 129, Firefox ESR < 128.3, and Thunderbird < 128.3.
CVE-2024-8897 2 Google, Mozilla 2 Android, Firefox 2026-06-17 N/A 6.1 MEDIUM
Under certain conditions, an attacker with the ability to redirect users to a malicious site via an open redirect on a trusted site, may be able to spoof the address bar contents. This can lead to a malicious site to appear to have the same URL as the trusted site. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox for Android < 130.0.1.
CVE-2024-8389 1 Mozilla 1 Firefox 2026-06-17 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 129. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 130.
CVE-2024-8388 2 Google, Mozilla 2 Android, Firefox 2026-06-17 N/A 5.3 MEDIUM
Multiple prompts and panels from both Firefox and the Android OS could be used to obscure the notification announcing the transition to fullscreen mode after the fix for CVE-2023-6870 in Firefox 121. This could lead to spoofing the browser UI if the sudden appearance of the prompt distracted the user from noticing the visual transition happening behind the prompt. These notifications now use the Android Toast feature. *This bug only affects Firefox on Android. Other operating systems are unaffected.* This vulnerability affects Firefox < 130.
CVE-2024-8387 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-06-17 N/A 9.8 CRITICAL
Memory safety bugs present in Firefox 129, Firefox ESR 128.1, and Thunderbird 128.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.