Vulnerabilities in Mozilla

2,105 results
Vexday analysis

Com 1.857 CVEs catalogadas e 189 classificadas como críticas, o histórico de vulnerabilidades da Mozilla reflete a complexidade de manter um navegador amplamente adotado. A taxa de exploração ativa — 9 entradas no CISA KEV, representando 0,48% do total — está em linha com a média geral do catálogo, o que indica um nível de exposição operacional compatível com o setor, sem desvio negativo expressivo. O tipo de falha mais recorrente é CWE-416 (use-after-free), uma classe de vulnerabilidade de memória com alto potencial de execução de código, e a CVE mais perigosa atualmente ativa, CVE-2016-9079, apresenta EPSS de 0,8792 — valor elevado que sugere probabilidade significativa de exploração continuada. Os 144 CVEs surgidos nos últimos 90 dias e a existência de 27 provas de conceito públicas reforçam a necessidade de monitoramento contínuo e priorização ágil de patches para ambientes que dependem de produtos Mozilla.

CVE-2023-0547MEDIUMOCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be acceEPSS 0.4%CVE-2025-3932MEDIUMTracking Links in Attachments Bypassed Remote Content BlockingEPSS 0.4%CVE-2026-84138HIGHDenial-of-service in the PDF Viewer componentEPSS 0.4%CVE-2018-12397—A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websitEPSS 0.4%CVE-2026-84145HIGHInternally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15EPSS 0.4%CVE-2024-6614MEDIUMIncorrect listing of stack framesEPSS 0.4%CVE-2026-92033HIGHPrivilege escalation in Firefox for AndroidEPSS 0.4%CVE-2022-45419MEDIUMIf the user added a security exception for an invalid TLS certificate, opened an ongoing TLS connection with a server that used that certifiEPSS 0.4%CVE-2024-4769MEDIUMWhen importing resources using Web Workers, error messages would distinguish the difference between `application/javascript` responses and nEPSS 0.4%CVE-2025-6427CRITICALconnect-src Content Security Policy restriction could be bypassedEPSS 0.4%CVE-2024-0748MEDIUMA compromised content process could have updated the document URI. This could have allowed an attacker to set an arbitrary URI in the addresEPSS 0.4%CVE-2025-9184HIGHMemory safety bugs fixed in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142EPSS 0.4%CVE-2022-22762MEDIUMUnder certain circumstances, a JavaScript alert (or prompt) could have been shown while another website was displayed underneath it. This coEPSS 0.4%CVE-2025-1941CRITICALLock screen setting bypass in Firefox Focus for AndroidEPSS 0.4%CVE-2022-34469HIGHWhen a TLS Certificate error occurs on a domain protected by the HSTS header, the browser should not allow the user to bypass the certificatEPSS 0.4%CVE-2025-11721CRITICALMemory safety bug fixed in Firefox 144 and Thunderbird 144EPSS 0.4%CVE-2024-3862MEDIUMThe MarkStack assignment operator, part of the JavaScript engine, could access uninitialized memory if it were used in a self-assignment. ThEPSS 0.4%CVE-2026-7324HIGHMemory safety bugs fixed in Thunderbird 150.0.1EPSS 0.4%CVE-2023-2142MEDIUMNunjucks autoescape bypass leads to cross site scriptingEPSS 0.4%CVE-2022-38472MEDIUMAn attacker could have abused XSLT error handling to associate attacker-controlled content with another origin which was displayed in the adEPSS 0.4%