Search Results (3226 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2025-13020 1 Mozilla 2 Firefox, Firefox Esr 2026-04-20 8.8 High
Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 145, Firefox ESR 140.5, Thunderbird 145, and Thunderbird 140.5.
CVE-2025-14321 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-04-20 9.8 Critical
Use-after-free in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14325 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-04-20 7.3 High
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14327 1 Mozilla 2 Firefox, Thunderbird 2026-04-20 7.5 High
Spoofing issue in the Downloads Panel component. This vulnerability was fixed in Firefox 146, Thunderbird 146, Firefox ESR 140.7, and Thunderbird 140.7.
CVE-2025-14328 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-04-20 8.8 High
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-14330 1 Mozilla 3 Firefox, Firefox Esr, Thunderbird 2026-04-20 9.8 Critical
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 146, Firefox ESR 140.6, Thunderbird 146, and Thunderbird 140.6.
CVE-2025-27425 2 Apple, Mozilla 2 Iphone Os, Firefox 2026-04-20 4.3 Medium
Scanning certain QR codes that included text with a website URL could allow the URL to be opened without presenting the user with a confirmation alert first. This vulnerability was fixed in Firefox for iOS 136.
CVE-2025-3033 1 Mozilla 2 Firefox, Thunderbird 2026-04-20 7.7 High
After selecting a malicious Windows `.url` shortcut from the local filesystem, an unexpected file could be uploaded. *This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability was fixed in Firefox 137 and Thunderbird 137.
CVE-2025-3034 1 Mozilla 2 Firefox, Thunderbird 2026-04-20 8.1 High
Memory safety bugs present in Firefox 136 and Thunderbird 136. 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 was fixed in Firefox 137 and Thunderbird 137.
CVE-2025-3035 1 Mozilla 1 Firefox 2026-04-20 5.3 Medium
By first using the AI chatbot in one tab and later activating it in another tab, the document title of the previous tab would leak into the chat prompt. This vulnerability was fixed in Firefox 137.
CVE-2025-3608 1 Mozilla 1 Firefox 2026-04-20 6.5 Medium
A race condition existed in nsHttpTransaction that could have been exploited to cause memory corruption, potentially leading to an exploitable condition. This vulnerability was fixed in Firefox 137.0.2.
CVE-2025-2817 2 Mozilla, Redhat 8 Firefox, Thunderbird, Enterprise Linux and 5 more 2026-04-20 8.8 High
Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10.
CVE-2025-4085 1 Mozilla 2 Firefox, Thunderbird 2026-04-20 7.1 High
An attacker with control over a content process could potentially leverage the privileged UITour actor to leak sensitive information or escalate privileges. This vulnerability was fixed in Firefox 138 and Thunderbird 138.
CVE-2025-4088 1 Mozilla 2 Firefox, Thunderbird 2026-04-20 6.5 Medium
A security vulnerability in Thunderbird allowed malicious sites to use redirects to send credentialed requests to arbitrary endpoints on any site that had invoked the Storage Access API. This enabled potential Cross-Site Request Forgery attacks across origins. This vulnerability was fixed in Firefox 138 and Thunderbird 138.
CVE-2025-4091 2 Mozilla, Redhat 8 Firefox, Thunderbird, Enterprise Linux and 5 more 2026-04-20 8.1 High
Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. 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 was fixed in Firefox 138, Firefox ESR 128.10, Thunderbird 138, and Thunderbird 128.10.
CVE-2025-5020 1 Mozilla 1 Firefox 2026-04-20 4.3 Medium
Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client. This vulnerability was fixed in Firefox for iOS 139.
CVE-2025-5263 2 Mozilla, Redhat 7 Firefox, Enterprise Linux, Rhel Aus and 4 more 2026-04-20 4.3 Medium
Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
CVE-2025-5264 2 Mozilla, Redhat 7 Firefox, Enterprise Linux, Rhel Aus and 4 more 2026-04-20 4.8 Medium
Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. This vulnerability was fixed in Firefox 139, Firefox ESR 115.24, Firefox ESR 128.11, Thunderbird 139, and Thunderbird 128.11.
CVE-2025-5270 1 Mozilla 1 Firefox 2026-04-20 7.5 High
In certain cases, SNI could have been sent unencrypted even when encrypted DNS was enabled. This vulnerability was fixed in Firefox 139 and Thunderbird 139.
CVE-2025-6424 2 Mozilla, Redhat 8 Firefox, Firefox Esr, Enterprise Linux and 5 more 2026-04-20 9.8 Critical
A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability was fixed in Firefox 140, Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird 140, and Thunderbird 128.12.