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MEDIUM 6.5 CVE-2026-74976 JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thund… Firefox 140.14.0 / 153.1.0+ Fix from $4,0002026-08-18 MEDIUM 5.4 CVE-2026-74975 Spoofing issue in the Downloads component in Firefox for Android. This vulnerability was fixed in Firefox 154. No fix yet Fix from $4,0002026-08-18 MEDIUM 5.4 CVE-2026-74974 Same-origin policy bypass in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, F… Firefox 115.39.0 / 140.14.0+ Fix from $4,0002026-08-18 HIGH 8.8 CVE-2026-74969 Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox … Firefox 115.39.0 / 140.14.0+ Fix from $4,9002026-08-18 MEDIUM 5.4 CVE-2026-74970 Site isolation issue in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.… No fix yet Fix from $4,0002026-08-18 MEDIUM 5.4 CVE-2026-74968 Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thund… Firefox No fix yet Fix from $4,0002026-08-18 MEDIUM 5.4 CVE-2026-74967 Same-origin policy bypass in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1,… Firefox 140.14.0 / 153.1.0+ Fix from $4,0002026-08-18 HIGH 8.1 CVE-2026-74960 Site isolation issue in the WebExtensions component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird … Fix unknown Fix from $4,9002026-08-18 CRITICAL 9.1 CVE-2026-74959 Mitigation bypass in the Storage: Cache API component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbir… Fix unknown Fix from $5,7502026-08-18 HIGH 7.5 CVE-2026-74966 Information disclosure in the Form Autofill component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbi… Fix unknown Fix from $4,9002026-08-18 CRITICAL 9.1 CVE-2026-74961 Side-channel in the Web Audio component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1. Firefox Fix unknown Fix from $5,7502026-08-18 CRITICAL 9.8 CVE-2026-74964 Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thun… Firefox 140.14.0 / 153.1.0+ Fix from $5,7502026-08-18 HIGH 8.1 CVE-2026-74962 Site isolation issue in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunde… Firefox 140.14.0 / 153.1.0+ Fix from $4,9002026-08-18 HIGH 8.8 CVE-2026-74965 Privilege escalation in the Shell Integration component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderb… Firefox 140.14.0 / 153.1.0+ Fix from $4,9002026-08-18 MEDIUM 5.4 CVE-2026-74963 Same-origin policy bypass in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, T… Firefox 140.14.0 / 153.1.0+ Fix from $4,0002026-08-18 HIGH 8.1 CVE-2026-74957 Mitigation bypass in the Safe Browsing component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154… Fix unknown Fix from $4,9002026-08-18 HIGH 7.5 CVE-2026-74958 Information disclosure in the WebRTC component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.… Firefox 153.1.0 / 154.0+ Fix from $4,9002026-08-18 CRITICAL 9.1 CVE-2026-74956 Same-origin policy bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and… Firefox 153.1.0 / 154.0+ Fix from $5,7502026-08-18 HIGH 8.8 CVE-2026-74955 Privilege escalation in the Request Handling component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderb… Firefox 153.1.0 / 154.0+ Fix from $4,9002026-08-18 HIGH 7.5 CVE-2026-74954 Information disclosure due to side-channel in the Storage: Cache API component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thund… Firefox 153.1.0 / 154.0+ Fix from $4,9002026-08-18 HIGH 8.8 CVE-2026-74953 Privilege escalation in the Networking: Cookies component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunde… Firefox 140.14.0 / 153.1.0+ Fix from $4,9002026-08-18 HIGH 8.8 CVE-2026-74952 Privilege escalation in the Application Update component. This vulnerability was fixed in Firefox 154 and Thunderbird 154. Firefox 154.0 / 154.0.0+ Fix from $4,9002026-08-18 MEDIUM 6.5 CVE-2026-74948 Information disclosure in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 15… Fix unknown Fix from $4,0002026-08-18 MEDIUM 6.5 CVE-2026-74945 Information disclosure in the Graphics: Text component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox … Fix unknown Fix from $4,0002026-08-18 MEDIUM 6.5 CVE-2026-74951 Clickjacking issue in Firefox for Android. This vulnerability was fixed in Firefox 154. Firefox Mobile 154.0+ Fix from $4,0002026-08-18 HIGH 8.8 CVE-2026-74950 Privilege escalation in the Downloads API component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird… Firefox 153.1.0 / 154.0+ Fix from $4,9002026-08-18 HIGH 8.8 CVE-2026-74949 Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Fire… Firefox 140.14.0 / 153.1.0+ Fix from $4,9002026-08-18 HIGH 8.8 CVE-2026-74947 Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 15… Firefox 153.1.0 / 154.0+ Fix from $4,9002026-08-18 HIGH 8.8 CVE-2026-74946 Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefo… Firefox 115.39.0 / 140.14.0+ Fix from $4,9002026-08-18 CRITICAL 9.8 CVE-2026-74944 Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154… Firefox Fix unknown Fix from $5,7502026-08-18