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UnknownMitigation bypass in the File Handling component.Vuln · CVE-2026-109783 · CVE.org · FIRST EPSS · Mozilla Security Advisories · Debian, FirefoxEPSS 0.2%Oct 13, 2026
Medium6.5Denial-of-service in the Printing: Output component.Vuln · CVE-2026-109781 · CVE.org · FIRST EPSS · OpenSSF OSV / OSV Scanner · DebianEPSS 0.2%Oct 13, 2026
UnknownRace condition in the XPCOM component.Vuln · CVE-2026-109776 · CVE.org · FIRST EPSS · Mozilla Security Advisories · Debian, FirefoxEPSS 0.1%Oct 13, 2026
Medium6.5Denial-of-service in the WebRTC component.Vuln · CVE-2026-109775 · CVE.org · FIRST EPSS · Mozilla Security Advisories · Debian, FirefoxEPSS 0.2%Oct 13, 2026
Medium4.3Information disclosure in the Networking component.Vuln · CVE-2026-109767 · CVE.org · FIRST EPSS · Mozilla Security Advisories · Debian, FirefoxEPSS 0.2%Oct 13, 2026
High8.8Privilege escalation in the Panning and Zooming component.Vuln · CVE-2026-109743 · CVE.org · FIRST EPSS · Mozilla Security Advisories · FirefoxEPSS 0.4%Oct 13, 2026
High8.8Privilege escalation in the WebExtensions component.Vuln · CVE-2026-109739 · CVE.org · FIRST EPSS · Mozilla Security Advisories · FirefoxEPSS 0.4%Oct 13, 2026
Medium5.4Use-after-free in the XML component.Vuln · CVE-2026-109718 · CVE.org · FIRST EPSS · Mozilla Security Advisories · Debian, FirefoxEPSS 0.2%Oct 13, 2026
UnknownIncorrect boundary conditions in the JavaScript Engine component.Vuln · CVE-2026-109715 · CVE.org · FIRST EPSS · Mozilla Security Advisories · Debian, FirefoxEPSS 0.2%Oct 13, 2026
High8.8Privilege escalation in the Application Update component.Vuln · CVE-2026-109704 · CVE.org · FIRST EPSS · Mozilla Security Advisories · FirefoxEPSS 0.3%Oct 13, 2026
UnknownIncorrect boundary conditions in the Layout componentVuln · CVE-2026-109753 · Mozilla · Firefox · CIRCL Vulnerability Lookup · CVE.org · FIRST EPSS · FirefoxEPSS 0.3%Oct 13, 2026
UnknownJIT miscompilation in the JavaScript Engine: JIT componentVuln · CVE-2026-109733 · Mozilla · Firefox · CIRCL Vulnerability Lookup · CVE.org · FIRST EPSS · FirefoxEPSS 0.3%Oct 13, 2026
UnknownInteger overflow in the Graphics componentVuln · CVE-2026-109730 · Mozilla · Firefox · CIRCL Vulnerability Lookup · CVE.org · FIRST EPSS · FirefoxEPSS 0.4%Oct 13, 2026
Medium6.1An attacker could cause a heap buffer overflow by getting a user to open an email that is greater than or equal to 2GB in size.Vuln · CVE-2026-103500 · JVN · thunderbird · CVE.org · FIRST EPSS · JVN iPedia · FirefoxEPSS 0.2%Sep 30, 2026
High8.8Memory safety bugs present in Firefox ESR 115.35, Firefox ESR 140.10 and Firefox 150.Vuln · CVE-2026-8975 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High8.8Memory safety bugs present in Firefox ESR 140.10 and Firefox 150.Vuln · CVE-2026-8974 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High8.8Memory safety bugs present in Firefox 150.Vuln · CVE-2026-8973 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High8.8Privilege escalation in the WebRTC: Audio/Video component.Vuln · CVE-2026-8972 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
Medium6.5Same-origin policy bypass in the Networking: JAR component.Vuln · CVE-2026-8971 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High8.8Privilege escalation in the Security component.Vuln · CVE-2026-8970 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High8.1Mitigation bypass in the DOM: Security component.Vuln · CVE-2026-8969 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High7.5Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component.Vuln · CVE-2026-8968 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High7.5Information disclosure in the Graphics: WebGPU component.Vuln · CVE-2026-8967 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High7.5Information disclosure in the IP Protection component.Vuln · CVE-2026-8966 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026
High7.5Information disclosure in the DOM: Security component.Vuln · CVE-2026-8965 · mozilla · firefox · CVE.org · NIST NVD · FirefoxMay 19, 2026