Threat database

971 threats

Threat database
Severity	CVSS	Signals	Threat	Source	Published
High	7.5	EPSS 0.7%	CVE-2026-4685Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4685 Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.7%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	7.5	EPSS 0.4%	CVE-2026-4684Mozilla Firefox · Vulnerability High7.5EPSS 0.4%2026-03-24CVE Database V5CVE-2026-4684 Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	8.8	EPSS 0.3%	CVE-2026-3847Mozilla Firefox · Memory Buffer Overflow High8.8EPSS 0.3%2026-03-10CVE Database V5CVE-2026-3847 Memory safety bugs present in Firefox 148.0.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148.0.2. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-03-10
Medium	6.5	EPSS 0.1%	CVE-2026-3846Mozilla Firefox · Vulnerability Medium6.5EPSS 0.1%2026-03-10CVE Database V5CVE-2026-3846 Same-origin policy bypass in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 148.0.2. EPSS 0.1%Vulnerability Mozilla	CVE Database V5	2026-03-10
High	8.8	EPSS 0.4%	CVE-2026-3845Mozilla Firefox · Vulnerability High8.8EPSS 0.4%2026-03-10CVE Database V5CVE-2026-3845 Heap buffer overflow in the Audio/Video: Playback component in Firefox for Android. This vulnerability was fixed in Firefox 148.0.2. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-03-10
Medium	4.3	EPSS 0.2%	CVE-2026-2919Mozilla Focus for iOS · Vulnerability Medium4.3EPSS 0.2%2026-03-09CVE Database V5CVE-2026-2919 Malicious scripts could display attacker-controlled web content under spoofed domains in Focus for iOS by stalling a _self navigation to an invalid port and triggering an iframe redirect, causing the UI to display a trusted domain without user interaction. This vulnerability was fixed in Focus for iOS 148.2. EPSS 0.2%Vulnerability Mozilla	CVE Database V5	2026-03-09
Critical	9.8	EPSS 0.3%	CVE-2026-2807Mozilla Firefox · Vulnerability Critical9.8EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2807 Memory safety bugs present in Firefox 147 and Thunderbird 147. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.1	EPSS 0.4%	CVE-2026-2806Mozilla Firefox · Vulnerability Critical9.1EPSS 0.4%2026-02-24CVE Database V5CVE-2026-2806 Uninitialized memory in the Graphics: Text component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.7%	CVE-2026-2805Mozilla Firefox · Vulnerability Critical9.8EPSS 0.7%2026-02-24CVE Database V5CVE-2026-2805 Invalid pointer in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.7%Vulnerability Mozilla	CVE Database V5	2026-02-24
Medium	5.4	EPSS 0.5%	CVE-2026-2804Mozilla Firefox · Vulnerability Medium5.4EPSS 0.5%2026-02-24CVE Database V5CVE-2026-2804 Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	7.5	EPSS 0.3%	CVE-2026-2803Mozilla Firefox · Information Exposure High7.5EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2803 Information disclosure, mitigation bypass in the Settings UI component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
Medium	4.2	EPSS 0.2%	CVE-2026-2802Mozilla Firefox · Race Condition Medium4.2EPSS 0.2%2026-02-24CVE Database V5CVE-2026-2802 Race condition in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.2%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	7.5	EPSS 0.3%	CVE-2026-2801Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2801 Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.3%	CVE-2026-2800Mozilla Firefox · Vulnerability Critical9.8EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2800 Spoofing issue in the WebAuthn component in Firefox for Android. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.5%	CVE-2026-2799Mozilla Firefox · Vulnerability High8.8EPSS 0.5%2026-02-24CVE Database V5CVE-2026-2799 Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.3%	CVE-2026-2798Mozilla Firefox · Vulnerability High8.8EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2798 Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.5%	CVE-2026-2797Mozilla Firefox · Vulnerability High8.8EPSS 0.5%2026-02-24CVE Database V5CVE-2026-2797 Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.9%	CVE-2026-2796Mozilla Firefox · Vulnerability Critical9.8EPSS 0.9%2026-02-24CVE Database V5CVE-2026-2796 JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.9%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.3%	CVE-2026-2795Mozilla Firefox · Vulnerability High8.8EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2795 Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
Medium	6.5	EPSS 0.3%	CVE-2026-2794Mozilla Firefox · Vulnerability Medium6.5EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2794 Information disclosure due to uninitialized memory in Firefox and Firefox Focus for Android. This vulnerability was fixed in Firefox 148. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24

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