Filtered by vendor Mozilla
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Total
3821 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-26950 | 1 Mozilla | 3 Firefox, Firefox Esr, Thunderbird | 2026-06-17 | 9.3 HIGH | 8.8 HIGH |
| In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2. | |||||
| CVE-2020-25648 | 4 Fedoraproject, Mozilla, Oracle and 1 more | 6 Fedora, Network Security Services, Communications Offline Mediation Controller and 3 more | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| A flaw was found in the way NSS handled CCS (ChangeCipherSpec) messages in TLS 1.3. This flaw allows a remote attacker to send multiple CCS messages, causing a denial of service for servers compiled with the NSS library. The highest threat from this vulnerability is to system availability. This flaw affects NSS versions before 3.58. | |||||
| CVE-2020-1933 | 2 Apache, Mozilla | 2 Nifi, Firefox | 2026-06-17 | 4.3 MEDIUM | 6.1 MEDIUM |
| A XSS vulnerability was found in Apache NiFi 1.0.0 to 1.10.0. Malicious scripts could be injected to the UI through action by an unaware authenticated user in Firefox. Did not appear to occur in other browsers. | |||||
| CVE-2020-16012 | 2 Google, Mozilla | 2 Chrome, Firefox | 2026-06-17 | 4.3 MEDIUM | 4.3 MEDIUM |
| Side-channel information leakage in graphics in Google Chrome prior to 87.0.4280.66 allowed a remote attacker to leak cross-origin data via a crafted HTML page. | |||||
| CVE-2020-15685 | 1 Mozilla | 1 Thunderbird | 2026-06-17 | N/A | 8.8 HIGH |
| During the plaintext phase of the STARTTLS connection setup, protocol commands could have been injected and evaluated within the encrypted session. This vulnerability affects Thunderbird < 78.7. | |||||
| CVE-2020-15684 | 1 Mozilla | 1 Firefox | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| Mozilla developers reported memory safety bugs present in Firefox 81. 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 < 82. | |||||
| CVE-2020-15683 | 3 Debian, Mozilla, Opensuse | 5 Debian Linux, Firefox, Firefox Esr and 2 more | 2026-06-17 | 7.5 HIGH | 9.8 CRITICAL |
| Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 ESR < 78.4, Firefox < 82, and Thunderbird < 78.4. | |||||
| CVE-2020-15682 | 1 Mozilla | 1 Firefox | 2026-06-17 | 4.3 MEDIUM | 6.5 MEDIUM |
| When a link to an external protocol was clicked, a prompt was presented that allowed the user to choose what application to open it in. An attacker could induce that prompt to be associated with an origin they didn't control, resulting in a spoofing attack. This was fixed by changing external protocol prompts to be tab-modal while also ensuring they could not be incorrectly associated with a different origin. This vulnerability affects Firefox < 82. | |||||
| CVE-2020-15681 | 1 Mozilla | 1 Firefox | 2026-06-17 | 5.0 MEDIUM | 7.5 HIGH |
| When multiple WASM threads had a reference to a module, and were looking up exported functions, one WASM thread could have overwritten another's entry in a shared stub table, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 82. | |||||
| CVE-2020-15680 | 1 Mozilla | 1 Firefox | 2026-06-17 | 5.0 MEDIUM | 5.3 MEDIUM |
| If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox < 82. | |||||
| CVE-2020-15679 | 1 Mozilla | 1 Vpn | 2026-06-17 | N/A | 7.6 HIGH |
| An OAuth session fixation vulnerability existed in the VPN login flow, where an attacker could craft a custom login URL, convince a VPN user to login via that URL, and obtain authenticated access as that user. This issue is limited to cases where attacker and victim are sharing the same source IP and could allow the ability to view session states and disconnect VPN sessions. This vulnerability affects Mozilla VPN iOS 1.0.7 < (929), Mozilla VPN Windows < 1.2.2, and Mozilla VPN Android 1.1.0 < (1360). | |||||
| CVE-2020-15678 | 3 Debian, Mozilla, Opensuse | 5 Debian Linux, Firefox, Firefox Esr and 2 more | 2026-06-17 | 6.8 MEDIUM | 8.8 HIGH |
| When recursing through graphical layers while scrolling, an iterator may have become invalid, resulting in a potential use-after-free. This occurs because the function APZCTreeManager::ComputeClippedCompositionBounds did not follow iterator invalidation rules. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. | |||||
| CVE-2020-15677 | 3 Debian, Mozilla, Opensuse | 5 Debian Linux, Firefox, Firefox Esr and 2 more | 2026-06-17 | 5.8 MEDIUM | 6.1 MEDIUM |
| By exploiting an Open Redirect vulnerability on a website, an attacker could have spoofed the site displayed in the download file dialog to show the original site (the one suffering from the open redirect) rather than the site the file was actually downloaded from. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. | |||||
| CVE-2020-15676 | 3 Debian, Mozilla, Opensuse | 5 Debian Linux, Firefox, Firefox Esr and 2 more | 2026-06-17 | 4.3 MEDIUM | 6.1 MEDIUM |
| Firefox sometimes ran the onload handler for SVG elements that the DOM sanitizer decided to remove, resulting in JavaScript being executed after pasting attacker-controlled data into a contenteditable element. This vulnerability affects Firefox < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. | |||||
| CVE-2020-15675 | 1 Mozilla | 1 Firefox | 2026-06-17 | 6.8 MEDIUM | 8.8 HIGH |
| When processing surfaces, the lifetime may outlive a persistent buffer leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 81. | |||||
| CVE-2020-15674 | 1 Mozilla | 1 Firefox | 2026-06-17 | 6.8 MEDIUM | 8.8 HIGH |
| Mozilla developers reported memory safety bugs present in Firefox 80. 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 < 81. | |||||
| CVE-2020-15673 | 3 Debian, Mozilla, Opensuse | 5 Debian Linux, Firefox, Firefox Esr and 2 more | 2026-06-17 | 6.8 MEDIUM | 8.8 HIGH |
| Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 < 81, Thunderbird < 78.3, and Firefox ESR < 78.3. | |||||
| CVE-2020-15669 | 1 Mozilla | 2 Firefox Esr, Thunderbird | 2026-06-17 | 6.8 MEDIUM | 8.8 HIGH |
| When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12. | |||||
| CVE-2020-15667 | 1 Mozilla | 1 Firefox | 2026-06-17 | 6.8 MEDIUM | 8.8 HIGH |
| When processing a MAR update file, after the signature has been validated, an invalid name length could result in a heap overflow, leading to memory corruption and potentially arbitrary code execution. Within Firefox as released by Mozilla, this issue is only exploitable with the Mozilla-controlled signing key. This vulnerability affects Firefox < 80. | |||||
| CVE-2020-15665 | 1 Mozilla | 1 Firefox | 2026-06-17 | 4.3 MEDIUM | 4.3 MEDIUM |
| Firefox did not reset the address bar after the beforeunload dialog was shown if the user chose to remain on the page. This could have resulted in an incorrect URL being shown when used in conjunction with other unexpected browser behaviors. This vulnerability affects Firefox < 80. | |||||