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Vulnérabilités connues pour Mozilla Firefox

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CVE Résumé Score Publiée
CVE-2025-6436 Memory safety bugs present in Firefox 139 and Thunderbird 139 8.1 Élevée 24 juin 2025
CVE-2025-6435 If a user saved a response from the Network tab in Devtools using the Save As context menu option, that file may not… 8.1 Élevée 24 juin 2025
CVE-2025-6434 The exception page for the HTTPS-Only feature, displayed when a website is opened via HTTP, lacked an… 4.3 Moyenne 24 juin 2025
CVE-2025-6433 If a user visited a webpage with an invalid TLS certificate, and granted an exception, the webpage was able to provide a… 9.8 Critique 24 juin 2025
CVE-2025-6432 When Multi-Account Containers was enabled, DNS requests could have bypassed a SOCKS proxy when the domain name was… 8.6 Élevée 24 juin 2025
CVE-2025-6431 When a link can be opened in an external application, Firefox for Android will, by default, prompt the user before doing… 6.5 Moyenne 24 juin 2025
CVE-2025-6428 When a URL was provided in a link querystring parameter, Firefox for Android would follow that URL instead of the… 4.3 Moyenne 24 juin 2025
CVE-2025-6427 An attacker was able to bypass the `connect-src` directive of a Content Security Policy by manipulating subdocuments 9.1 Critique 24 juin 2025
CVE-2025-6430 When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file… 6.1 Moyenne 24 juin 2025
CVE-2025-6426 The executable file warning did not warn users before opening files with the `terminal` extension 8.8 Élevée 24 juin 2025
CVE-2025-6429 Firefox could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsing the URL specified in… 6.5 Moyenne 24 juin 2025
CVE-2025-6425 An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that… 4.3 Moyenne 24 juin 2025
CVE-2025-6424 A use-after-free in FontFaceSet resulted in a potentially exploitable crash 9.8 Critique 24 juin 2025
CVE-2025-49710 An integer overflow was present in `OrderedHashTable` used by the JavaScript engine 9.8 Critique 11 juin 2025
CVE-2025-49709 Certain canvas operations could have lead to memory corruption 9.8 Critique 11 juin 2025
CVE-2025-5272 Memory safety bugs present in Firefox 138 and Thunderbird 138 7.3 Élevée 27 mai 2025
CVE-2025-5271 Previewing a response in Devtools ignored CSP headers, which could have allowed content injection attacks 6.5 Moyenne 27 mai 2025
CVE-2025-5270 In certain cases, SNI could have been sent unencrypted even when encrypted DNS was enabled 7.5 Élevée 27 mai 2025
CVE-2025-5269 Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10 8.1 Élevée 27 mai 2025
CVE-2025-5268 Memory safety bugs present in Firefox 138, Thunderbird 138, Firefox ESR 128.10, and Thunderbird 128.10 8.1 Élevée 27 mai 2025
CVE-2025-5267 A clickjacking vulnerability could have been used to trick a user into leaking saved payment card details to a malicious… 5.4 Moyenne 27 mai 2025
CVE-2025-5266 Script elements loading cross-origin resources generated load and error events which leaked information enabling… 4.3 Moyenne 27 mai 2025
CVE-2025-5265 Due to insufficient escaping of the ampersand character in the “Copy as cURL” feature, an attacker could trick a user… 4.8 Moyenne 27 mai 2025
CVE-2025-5264 Due to insufficient escaping of the newline character in the “Copy as cURL” feature, an attacker could trick a user into… 4.8 Moyenne 27 mai 2025
CVE-2025-5263 Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin… 4.3 Moyenne 27 mai 2025

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