Vulnerabilities
All
My stack
Known exploited
Public exploit
Critical (9+)
Likely exploited (EPSS ≥ 50%)
Changed, 24 h
New, 24 h
Sort:
risk
modified
published
CVSS
EPSS
| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2023-32207 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | A missing delay in popup notifications could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. | Fri 23 Oct |
| CVE-2023-32213 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | When reading a file, an uninitialized value could have been used as read limit. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. | Fri 23 Oct |
| CVE-2023-3600 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1. | Fri 23 Oct |
| CVE-2025-10533 | 8.8 high | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the SVG component. This vulnerability was fixed in Firefox 143, Firefox ESR 115.28, Firefox ESR 140.3, Thunderbird 143, and Thunderbird 140.3. | Fri 23 Oct |
| CVE-2023-25734 | 8.1 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a remote path that would lead to unexpected network requests from the operating system. This also had the potential to leak NTLM credentials to the resource.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2026-6746 | 7.5 high | 1.0% | mozilla, firefox, thunderbird | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6785 | 7.5 high | 1.0% | mozilla, firefox, thunderbird | Memory safety bugs present in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149. 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 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2023-25743 | 7.5 high | 1.0% | mozilla, firefox_focus | A lack of in app notification for entering fullscreen mode could have lead to a malicious website spoofing browser chrome.<br>*This bug only affects Firefox Focus. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 110 and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-32214 | 7.5 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service. *Note: This attack only affects Windows. Other operating systems are not affected.* This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. | Fri 23 Oct |
| CVE-2026-8946 | 7.5 high | 1.0% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 115.36, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2026-8949 | 7.5 high | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2023-1945 | 6.5 medium | 1.0% | mozilla, firefox_esr, thunderbird | Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 102.10 and Firefox ESR < 102.10. | Sat 24 Oct |
| CVE-2023-23599 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | When copying a network request from the developer tools panel as a curl command the output was not being properly sanitized and could allow arbitrary commands to be hidden within. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7. | Sat 24 Oct |
| CVE-2023-25728 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | The <code>Content-Security-Policy-Report-Only</code> header could allow an attacker to leak a child iframe's unredacted URI when interaction with that iframe triggers a redirect. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25742 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the tab to crash. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25752 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | When accessing throttled streams, the count of available bytes needed to be checked in the calling function to be within bounds. This may have lead future code to be incorrect and vulnerable. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. | Sat 24 Oct |
| CVE-2023-29535 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced. This resulted in memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | Sat 24 Oct |
| CVE-2023-29548 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | Sat 24 Oct |
| CVE-2023-32206 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | An out-of-bound read could have led to a crash in the RLBox Expat driver. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. | Sat 24 Oct |
| CVE-2023-29545 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user. *This bug only affects Firefox and Thunderbird on Windows. Other versions of Firefox and Thunderbird are unaffected.* This vulnerability affects Firefox < 112, Firefox ESR < 102.10, and Thunderbird < 102.10. | Sat 24 Oct |
| CVE-2023-23598 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Due to the Firefox GTK wrapper code's use of text/plain for drag data and GTK treating all text/plain MIMEs containing file URLs as being dragged a website could arbitrarily read a file via a call to `DataTransfer.setData`. This vulnerability affects Firefox < 109, Firefox ESR < 102.7, and Thunderbird < 102.7. | Fri 23 Oct |
| CVE-2023-25738 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Members of the <code>DEVMODEW</code> struct set by the printer device driver weren't being validated and could have resulted in invalid values which in turn would cause the browser to attempt out of bounds access to related variables.<br>*This bug only affects Firefox on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Fri 23 Oct |
| CVE-2023-25751 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Sometimes, when invalidating JIT code while following an iterator, the newly generated code could be overwritten incorrectly. This could lead to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. | Fri 23 Oct |
| CVE-2023-28163 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | When downloading files through the Save As dialog on Windows with suggested filenames containing environment variable names, Windows would have resolved those in the context of the current user. <br>*This bug only affects Firefox on Windows. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. | Fri 23 Oct |
| CVE-2023-32211 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | A type checking bug would have led to invalid code being compiled. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. | Fri 23 Oct |
| CVE-2023-37207 | 6.5 medium | 1.0% | mozilla, debian, firefox, firefox_esr, thunderbird | A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. | Fri 23 Oct |
| CVE-2023-4052 | 6.5 medium | 1.0% | mozilla, firefox, firefox_esr | The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 115.1, and Thunderbird < 115.1. | Fri 23 Oct |
| CVE-2023-4049 | 5.9 medium | 1.0% | mozilla, debian, firefox, debian_linux | Race conditions in reference counting code were found through code inspection. These could have resulted in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | Fri 23 Oct |
| CVE-2023-25730 | 5.4 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | A background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoofing attacks. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-4045 | 5.3 medium | 1.0% | mozilla, debian, firefox, debian_linux | Offscreen Canvas did not properly track cross-origin tainting, which could have been used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | Sat 24 Oct |
| CVE-2024-9398 | 5.3 medium | 1.0% | mozilla, firefox, thunderbird | 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. | 8 Oct |
| CVE-2023-32212 | 4.3 medium | 1.0% | mozilla, firefox, firefox_esr, thunderbird | An attacker could have positioned a `datalist` element to obscure the address bar. This vulnerability affects Firefox < 113, Firefox ESR < 102.11, and Thunderbird < 102.11. | Sat 24 Oct |
| CVE-2023-34414 | 3.1 low | 1.0% | mozilla, firefox, firefox_esr, thunderbird | The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site. This vulnerability affects Firefox ESR < 102.12, Firefox < 114, and Thunderbird < 102.12. | Sat 24 Oct |
| CVE-2026-6771 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-6748 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Uninitialized memory in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10. | Mon 26 Oct |
| CVE-2026-8094 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Other issue in the WebRTC component. This vulnerability was fixed in Firefox ESR 140.10.2 and Thunderbird 140.10.2. | Mon 26 Oct |
| CVE-2026-8401 | 9.8 critical | 0.00% | mozilla, firefox | Sandbox escape in the Profile Backup component. This vulnerability was fixed in Firefox 150.0.3, Firefox ESR 115.36, Firefox ESR 140.11, and Thunderbird 140.11. | Mon 26 Oct |
| CVE-2026-8091 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, Thunderbird 140.10.1, and Firefox ESR 115.35.2. | Mon 26 Oct |
| CVE-2026-16349 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16358 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16375 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-16387 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. | Sat 24 Oct |
| CVE-2026-5731 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Memory safety bugs present in Firefox ESR 115.34.0, Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 was fixed in Firefox 149.0.2, Firefox ESR 115.34.1, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1. | Sat 24 Oct |
| CVE-2026-5734 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Memory safety bugs present in Firefox ESR 140.9.0, Thunderbird ESR 140.9.0, Firefox 149.0.1 and Thunderbird 149.0.1. 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 was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1. | Fri 23 Oct |
| CVE-2025-11709 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | Fri 23 Oct |
| CVE-2025-11710 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | A compromised web process using malicious IPC messages could have caused the privileged browser process to reveal blocks of its memory to the compromised process. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4. | Fri 23 Oct |
| CVE-2026-100788 | 9.8 critical | 0.00% | mozilla, firefox, thunderbird | Invalid pointer in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17. | 19 Oct |
| CVE-2026-109708 | 9.6 critical | 0.00% | no CPE yet | Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44. | Tue 27 Oct |
| CVE-2026-109707 | 9.6 critical | 0.00% | no CPE yet | Sandbox escape due to use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44. | Tue 27 Oct |
| CVE-2026-109705 | 9.6 critical | 0.00% | no CPE yet | Sandbox escape, site isolation issue due to incorrect boundary conditions, use-after-free in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, Thunderbird 153.5, and Firefox ESR 115.44. | Tue 27 Oct |
Download these 436 as CSV · subscribe to this list.
EPSS scores: 2026-10-29. NVD cursor: 2026-10-29 00:22. The News page shows only notable CVEs (KEV, your stack, new criticals, EPSS over 50%, or active exploitation per SSVC); this table has all of them.