Total
3487 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2023-4577 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-06-17 | N/A | 6.5 MEDIUM |
| When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2. | |||||
| CVE-2023-4576 | 2 Microsoft, Mozilla | 4 Windows, Firefox, Firefox Esr and 1 more | 2026-06-17 | N/A | 8.6 HIGH |
| On Windows, an integer overflow could occur in `RecordedSourceSurfaceCreation` which resulted in a heap buffer overflow potentially leaking sensitive data that could have led to a sandbox escape. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2. | |||||
| CVE-2023-4575 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-06-17 | N/A | 6.5 MEDIUM |
| When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2. | |||||
| CVE-2023-4574 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-06-17 | N/A | 6.5 MEDIUM |
| When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2. | |||||
| CVE-2023-4573 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-06-17 | N/A | 6.5 MEDIUM |
| When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2. | |||||
| CVE-2023-4058 | 1 Mozilla | 1 Firefox | 2026-06-17 | N/A | 9.8 CRITICAL |
| Memory safety bugs present in Firefox 115. 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 < 116. | |||||
| CVE-2023-4057 | 1 Mozilla | 2 Firefox, Firefox Esr | 2026-06-17 | N/A | 9.8 CRITICAL |
| Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. 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 < 116, Firefox ESR < 115.1, and Thunderbird < 115.1. | |||||
| CVE-2023-4056 | 2 Debian, Mozilla | 2 Debian Linux, Firefox | 2026-06-17 | N/A | 9.8 CRITICAL |
| Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. 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 < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | |||||
| CVE-2023-4055 | 2 Debian, Mozilla | 2 Debian Linux, Firefox | 2026-06-17 | N/A | 7.5 HIGH |
| When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the host was no longer consistent with expected cookie jar state. This could have caused requests to be sent with some cookies missing. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | |||||
| CVE-2023-4054 | 2 Microsoft, Mozilla | 2 Windows, Firefox | 2026-06-17 | N/A | 5.5 MEDIUM |
| When opening appref-ms files, Firefox did not warn the user that these files may contain malicious code. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 116, Firefox ESR < 102.14, Firefox ESR < 115.1, Thunderbird < 102.14, and Thunderbird < 115.1. | |||||
| CVE-2023-4053 | 1 Mozilla | 1 Firefox | 2026-06-17 | N/A | 6.5 MEDIUM |
| A website could have obscured the full screen 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 < 116, Firefox ESR < 115.2, and Thunderbird < 115.2. | |||||
| CVE-2023-4051 | 1 Mozilla | 1 Firefox | 2026-06-17 | N/A | 7.5 HIGH |
| A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2. | |||||
| CVE-2023-4048 | 2 Debian, Mozilla | 2 Debian Linux, Firefox | 2026-06-17 | N/A | 7.5 HIGH |
| An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | |||||
| CVE-2023-4047 | 2 Debian, Mozilla | 2 Debian Linux, Firefox | 2026-06-17 | N/A | 8.8 HIGH |
| A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | |||||
| CVE-2023-4046 | 2 Debian, Mozilla | 2 Debian Linux, Firefox | 2026-06-17 | N/A | 5.3 MEDIUM |
| In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This resulted in incorrect compilation and a potentially exploitable crash in the content process. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. | |||||
| CVE-2023-47131 | 4 Google, Microsoft, Mozilla and 1 more | 4 Chrome, Edge, Firefox and 1 more | 2026-06-17 | N/A | 7.5 HIGH |
| The N-able PassPortal extension before 3.29.2 for Chrome inserts sensitive information into a log file. | |||||
| CVE-2023-3482 | 1 Mozilla | 1 Firefox | 2026-06-17 | N/A | 6.5 MEDIUM |
| When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115. | |||||
| CVE-2023-37456 | 1 Mozilla | 1 Firefox | 2026-06-17 | N/A | 6.5 MEDIUM |
| The session restore helper crashed whenever there was no parameter sent to the message handler. This vulnerability affects Firefox for iOS < 115. | |||||
| CVE-2023-37455 | 1 Mozilla | 1 Firefox | 2026-06-17 | N/A | 5.4 MEDIUM |
| The permission request prompt from the site in the background tab was overlaid on top of the site in the foreground tab. This vulnerability affects Firefox for iOS < 115. | |||||
| CVE-2023-37212 | 1 Mozilla | 1 Firefox | 2026-06-17 | N/A | 8.8 HIGH |
| Memory safety bugs present in Firefox 114. 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. | |||||