Filtered by vendor Mozilla
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Filtered by product Thunderbird
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Total
1658 CVE
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-4721 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-14 | 9.8 Critical |
| Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. 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, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | ||||
| CVE-2026-3889 | 1 Mozilla | 1 Thunderbird | 2026-04-14 | 6.5 Medium |
| Spoofing issue in Thunderbird. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9. | ||||
| CVE-2026-4371 | 1 Mozilla | 1 Thunderbird | 2026-04-14 | 7.4 High |
| A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail server or connection to a mail server were compromised, an attacker could cause the parser to malfunction, potentially crashing Thunderbird or leaking sensitive data. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9. | ||||
| CVE-2026-5732 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-14 | 8.8 High |
| Incorrect boundary conditions, integer overflow in the Graphics: Text component. This vulnerability was fixed in Firefox 149.0.2, Firefox ESR 140.9.1, Thunderbird 149.0.2, and Thunderbird 140.9.1. | ||||
| CVE-2026-5733 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-04-14 | 8.8 High |
| Incorrect boundary conditions in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2. | ||||
| CVE-2026-5734 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-14 | 8.1 High |
| 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. | ||||
| CVE-2026-5735 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-04-14 | 8.1 High |
| Memory safety bugs present in 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 and Thunderbird 149.0.2. | ||||
| CVE-2026-2777 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 9.8 Critical |
| Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | ||||
| CVE-2026-2772 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 8.8 High |
| Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | ||||
| CVE-2025-9187 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-04-13 | 9.8 Critical |
| Memory safety bugs present in 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 and Thunderbird 142. | ||||
| CVE-2025-9185 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 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-2025-9184 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 8.1 High |
| Memory safety bugs present in 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 140.2, Thunderbird 142, and Thunderbird 140.2. | ||||
| CVE-2025-9182 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 7.5 High |
| Denial-of-service due to out-of-memory in the Graphics: WebRender component. This vulnerability was fixed in Firefox 142, Firefox ESR 140.2, Thunderbird 142, and Thunderbird 140.2. | ||||
| CVE-2025-9181 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 6.5 Medium |
| Uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 142, Firefox ESR 128.14, Firefox ESR 140.2, Thunderbird 142, Thunderbird 128.14, and Thunderbird 140.2. | ||||
| CVE-2025-9180 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 8.1 High |
| Same-origin policy bypass in the Graphics: Canvas2D component. 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-2025-9179 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 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-2025-8044 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-04-13 | 9.8 Critical |
| Memory safety bugs present in Firefox 140 and Thunderbird 140. 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 141 and Thunderbird 141. | ||||
| CVE-2025-8043 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-04-13 | 9.8 Critical |
| Focus incorrectly truncated URLs towards the beginning instead of around the origin. This vulnerability was fixed in Firefox 141. | ||||
| CVE-2025-8040 | 1 Mozilla | 4 Firefox, Firefox Esr, Thunderbird and 1 more | 2026-04-13 | 8.8 High |
| Memory safety bugs present in Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1. | ||||
| CVE-2025-8039 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-04-13 | 8.1 High |
| In some cases search terms persisted in the URL bar even after navigating away from the search page. This vulnerability was fixed in Firefox 141, Firefox ESR 140.1, Thunderbird 141, and Thunderbird 140.1. | ||||