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Search Results (2738 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-117874 | 1 Mozilla | 1 Firefox | 2026-11-04 | 6.3 Medium |
| Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2026-117872 | 1 Mozilla | 1 Firefox | 2026-11-04 | 8.8 High |
| Use-after-free in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2026-117865 | 1 Mozilla | 1 Firefox | 2026-11-04 | 6.3 Medium |
| Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2026-117862 | 1 Mozilla | 1 Firefox | 2026-11-04 | 9.8 Critical |
| Privilege escalation due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2026-117860 | 1 Mozilla | 2 Firefox, Thunderbird | 2026-11-04 | 8.1 High |
| Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2026-117889 | 1 Mozilla | 1 Firefox | 2026-11-04 | 7.3 High |
| Incorrect boundary conditions in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2026-118180 | 1 Mozilla | 1 Thunderbird | 2026-11-04 | 7.5 High |
| When logging in to a Matrix account, Thunderbird used the homeserver address provided in the server's login response without validating it. A malicious or compromised homeserver could provide a file: URL, causing Thunderbird to send all further Matrix requests of that session to local files or, on Windows, to an attacker-controlled network share, which could leak the user's NTLM credentials. The NTLM credential leak only affects Thunderbird on Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6. | ||||
| CVE-2026-118179 | 1 Mozilla | 1 Thunderbird | 2026-11-04 | 8.8 High |
| Clicking a news: or snews: link that referenced a message-ID made Thunderbird connect, without asking, to the host and port given in the link, even if it was not a configured news server. Line breaks in the message-ID were sent to the server unmodified, so a crafted link could send arbitrary commands to services reachable from the user's network. In addition, snews: links to such servers connected without TLS. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6. | ||||
| CVE-2026-118177 | 1 Mozilla | 1 Thunderbird | 2026-11-04 | 9.1 Critical |
| When looking for calendars in a directory on a server, during account setup or when adding a new network calendar, Thunderbird accepted calendar locations pointing to other servers, local files or network shares. A malicious server, or a network attacker when the lookup used plain HTTP, could make Thunderbird subscribe to such a location. On Windows this could leak the user's NTLM credentials to an attacker-controlled host on every calendar refresh, and changes to the calendar could be written to the attacker's share or overwrite a local file. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6. | ||||
| CVE-2026-118176 | 1 Mozilla | 1 Thunderbird | 2026-11-04 | 8.1 High |
| Thunderbird's check that prevents mailbox: URLs from accessing files on remote Windows network shares could be bypassed using extended-length UNC paths. Displaying a specially crafted email could cause Thunderbird to connect to an SMB server chosen by the attacker, disclosing the user's Windows account name and NTLM authentication data, which could be used for offline password cracking or relay attacks. This bug only affects Thunderbird on Windows. Other operating systems are unaffected. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6. | ||||
| CVE-2026-118174 | 1 Mozilla | 1 Thunderbird | 2026-11-04 | 6.5 Medium |
| When a message containing an OpenPGP key attachment was displayed, Thunderbird automatically loaded the attachment's content to offer importing the key. A sender could mark the attachment as an external attachment pointing to an arbitrary URL, which Thunderbird then loaded without any user interaction, bypassing remote content blocking. On Windows, a URL pointing to an attacker-controlled network share could leak the user's NTLM credentials. The NTLM credential leak only affects Thunderbird on Windows. On other operating systems, the issue allowed a remote request that bypassed remote content blocking. This vulnerability was fixed in Thunderbird 159 and Thunderbird 153.6. | ||||
| CVE-2026-117870 | 1 Mozilla | 1 Firefox | 2026-11-04 | 7.3 High |
| Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2026-117866 | 1 Mozilla | 1 Firefox | 2026-11-04 | 7.3 High |
| Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6. | ||||
| CVE-2017-5436 | 4 Debian, Mozilla, Redhat and 1 more | 10 Debian Linux, Firefox, Thunderbird and 7 more | 2026-10-16 | 8.8 High |
| An out-of-bounds write in the Graphite 2 library triggered with a maliciously crafted Graphite font. This results in a potentially exploitable crash. This issue was fixed in the Graphite 2 library as well as Mozilla products. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53. | ||||
| CVE-2015-7575 | 4 Canonical, Mozilla, Opensuse and 1 more | 9 Ubuntu Linux, Firefox, Network Security Services and 6 more | 2026-10-14 | N/A |
| Mozilla Network Security Services (NSS) before 3.20.2, as used in Mozilla Firefox before 43.0.2 and Firefox ESR 38.x before 38.5.2, does not reject MD5 signatures in Server Key Exchange messages in TLS 1.2 Handshake Protocol traffic, which makes it easier for man-in-the-middle attackers to spoof servers by triggering a collision. | ||||
| CVE-2011-3389 | 9 Canonical, Debian, Google and 6 more | 21 Ubuntu Linux, Debian Linux, Chrome and 18 more | 2026-10-09 | N/A |
| The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a "BEAST" attack. | ||||
| CVE-2016-9063 | 3 Debian, Mozilla, Python | 3 Debian Linux, Firefox, Python | 2026-10-08 | 9.8 Critical |
| An integer overflow during the parsing of XML using the Expat library. This vulnerability affects Firefox < 50. | ||||
| CVE-2016-0718 | 10 Apple, Canonical, Debian and 7 more | 16 Mac Os X, Ubuntu Linux, Debian Linux and 13 more | 2026-10-08 | 9.8 Critical |
| Expat allows context-dependent attackers to cause a denial of service (crash) or possibly execute arbitrary code via a malformed input document, which triggers a buffer overflow. | ||||
| CVE-2020-15664 | 2 Mozilla, Redhat | 7 Firefox, Firefox Esr, Firefox Mobile and 4 more | 2026-08-19 | 6.5 Medium |
| By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thunderbird < 78.2, Thunderbird < 68.12, Firefox ESR < 68.12, Firefox ESR < 78.2, and Firefox for Android < 80. | ||||
| CVE-2019-17003 | 1 Mozilla | 1 Firefox Mobile | 2026-08-19 | 6.1 Medium |
| Scanning a QR code that contained a javascript: URL would have resulted in the Javascript being executed. | ||||