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EPSS
| CVE | CVSS | EPSS | Vendor, product | Description | Modified |
|---|---|---|---|---|---|
| CVE-2026-8956 | 9.8 critical | 1.0% | mozilla, firefox, thunderbird | Integer overflow in the Networking: JAR component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11. | 14 Oct |
| CVE-2026-8953 | 9.6 critical | 1.0% | mozilla, firefox, thunderbird | Sandbox escape due to use-after-free in the Disability Access APIs 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-2026-16392 | 9.1 critical | 1.0% | mozilla, firefox, thunderbird | JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | Sat 24 Oct |
| CVE-2026-16393 | 9.1 critical | 1.0% | mozilla, firefox, thunderbird | Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | Sat 24 Oct |
| CVE-2023-0767 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes via PKCS 12 Safe Bag attributes being mishandled. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-23605 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 108 and Firefox ESR 102.6. 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 < 109, Firefox ESR < 102.7, and Thunderbird < 102.7. | Sat 24 Oct |
| CVE-2023-25732 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | When encoding data from an <code>inputStream</code> in <code>xpcom</code> the size of the input being encoded was not correctly calculated potentially leading to an out of bounds memory write. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25735 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free after unwrapping the proxy. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25737 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | An invalid downcast from <code>nsTextNode</code> to <code>SVGElement</code> could have lead to undefined behavior. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-25739 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in <code>ScriptLoadContext</code>. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8. | Sat 24 Oct |
| CVE-2023-28176 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | Memory safety bugs present in Firefox 110 and Firefox ESR 102.8. 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 < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. | Sat 24 Oct |
| CVE-2023-29550 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | Sat 24 Oct |
| CVE-2023-37202 | 8.8 high | 1.0% | mozilla, debian, firefox, firefox_esr, thunderbird | Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. | Sat 24 Oct |
| CVE-2023-37211 | 8.8 high | 1.0% | mozilla, debian, firefox, firefox_esr, thunderbird | Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. 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 < 115, Firefox ESR < 102.13, and Thunderbird < 102.13. | Sat 24 Oct |
| CVE-2023-25744 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr | Mmemory safety bugs present in Firefox 109 and Firefox ESR 102.7. 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 < 110 and Firefox ESR < 102.8. | Fri 23 Oct |
| CVE-2023-25746 | 8.8 high | 1.0% | mozilla, firefox_esr, thunderbird | Memory safety bugs present in Firefox ESR 102.7. 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 Thunderbird < 102.8 and Firefox ESR < 102.8. | Fri 23 Oct |
| CVE-2023-28162 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, thunderbird | While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. | Fri 23 Oct |
| CVE-2023-29536 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled memory, resulting in an assertion, memory corruption, or 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. | Fri 23 Oct |
| CVE-2023-29539 | 8.8 high | 1.0% | mozilla, firefox, firefox_esr, firefox_mobile | When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. | Fri 23 Oct |
| 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-2026-6758 | 7.5 high | 1.0% | mozilla, firefox, thunderbird | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 150 and Thunderbird 150. | 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-2026-16376 | 7.5 high | 1.0% | mozilla, firefox, thunderbird | Denial-of-service in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | Sat 24 Oct |
| CVE-2026-16409 | 7.5 high | 1.0% | mozilla, firefox, thunderbird | Invalid pointer in the Security: PSM component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. | Sat 24 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-2023-25747 | 7.5 high | 1.0% | mozilla, firefox_mobile | A potential use-after-free in libaudio was fixed by disabling the AAudio backend when running on Android API below version 30. *This bug only affects Firefox for Android. Other versions of Firefox are unaffected.* This vulnerability affects Firefox for Android < 110.1.0. | 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 |
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EPSS scores: 2026-10-28. 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.