Total
2070 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2025-1938 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 6.5 MEDIUM |
| Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 128.7, and Thunderbird 128.7. 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 was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8. | |||||
| CVE-2025-0237 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | 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-2025-1937 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 7.5 HIGH |
| Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. 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 was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8. | |||||
| CVE-2025-4093 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 8.1 HIGH |
| Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 128.10 and Thunderbird 128.10. | |||||
| CVE-2025-4082 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 5.9 MEDIUM |
| Modification of specific WebGL shader attributes could trigger an out-of-bounds read, which, when chained with other vulnerabilities, could be used to escalate privileges. *This bug only affects Thunderbird for macOS. Other versions of Thunderbird are unaffected.*. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Firefox ESR 115.23, Thunderbird 138, and Thunderbird 128.10. | |||||
| CVE-2025-4087 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 4.8 MEDIUM |
| A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption. This vulnerability was fixed in Firefox 138, Firefox ESR 128.10, Thunderbird 138, and Thunderbird 128.10. | |||||
| CVE-2025-1942 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 9.8 CRITICAL |
| When String.toUpperCase() caused a string to get longer it was possible for uninitialized memory to be incorporated into the result string. This vulnerability was fixed in Firefox 136 and Thunderbird 136. | |||||
| CVE-2025-1018 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 5.3 MEDIUM |
| The fullscreen notification is prematurely hidden when fullscreen is re-requested quickly by the user. This could have been leveraged to perform a potential spoofing attack. This vulnerability was fixed in Firefox 135 and Thunderbird 135. | |||||
| CVE-2025-8036 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 8.1 HIGH |
| Thunderbird cached CORS preflight responses across IP address changes. This allowed circumventing CORS with DNS rebinding. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1. | |||||
| CVE-2025-9179 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 9.8 CRITICAL |
| An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability was fixed in Firefox 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2. | |||||
| CVE-2025-8030 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 8.1 HIGH |
| Insufficient escaping in the “Copy as cURL” feature could potentially be used to trick a user into executing unexpected code. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1. | |||||
| CVE-2025-0243 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 5.1 MEDIUM |
| Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. 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 134, Firefox ESR 128.6, Thunderbird 134, and Thunderbird 128.6. | |||||
| CVE-2025-1935 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 4.3 MEDIUM |
| A web page could trick a user into setting that site as the default handler for a custom URL protocol. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8. | |||||
| CVE-2025-8037 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 9.1 CRITICAL |
| Setting a nameless cookie with an equals sign in the value shadowed other cookies. Even if the nameless cookie was set over HTTP and the shadowed cookie included the `Secure` attribute. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1. | |||||
| CVE-2025-3030 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 8.1 HIGH |
| Memory safety bugs present in Firefox 136, Thunderbird 136, Firefox ESR 128.8, and Thunderbird 128.8. 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 was fixed in Firefox 137, Firefox ESR 128.9, Thunderbird 137, and Thunderbird 128.9. | |||||
| CVE-2025-1017 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 9.8 CRITICAL |
| Memory safety bugs present in Firefox 134, Thunderbird 134, Firefox ESR 128.6, and Thunderbird 128.6. 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 was fixed in Firefox 135, Firefox ESR 128.7, Thunderbird 128.7, and Thunderbird 135. | |||||
| CVE-2025-1931 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 7.5 HIGH |
| It was possible to cause a use-after-free in the content process side of a WebTransport connection, leading to a potentially exploitable crash. This vulnerability was fixed in Firefox 136, Firefox ESR 115.21, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8. | |||||
| CVE-2025-9185 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 8.1 HIGH |
| Memory safety bugs present in Firefox ESR 115.26, Firefox ESR 128.13, Thunderbird ESR 128.13, Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. 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 142, Firefox ESR 115.27, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2. | |||||
| CVE-2025-8038 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 9.8 CRITICAL |
| Thunderbird ignored paths when checking the validity of navigations in a frame. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1. | |||||
| CVE-2025-8031 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-10-05 | N/A | 9.8 CRITICAL |
| The `username:password` part was not correctly stripped from URLs in CSP reports potentially leaking HTTP Basic Authentication credentials. This vulnerability was fixed in Firefox 141, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1. | |||||