Threat database

971 threats

Threat database
Severity	CVSS	Signals	Threat	Source	Published
Critical	9.1	EPSS 0.5%	CVE-2026-4724Mozilla Firefox · Vulnerability Critical9.1EPSS 0.5%2026-03-24CVE Database V5CVE-2026-4724 Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.8	EPSS 0.6%	CVE-2026-4723Mozilla Firefox · Vulnerability Critical9.8EPSS 0.6%2026-03-24CVE Database V5CVE-2026-4723 Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.8	EPSS 0.7%	CVE-2026-4702Mozilla Firefox · Vulnerability Critical9.8EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4702 JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.7%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	8.8	EPSS 0.3%	CVE-2026-4722Mozilla Firefox · Vulnerability High8.8EPSS 0.3%2026-03-24CVE Database V5CVE-2026-4722 Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.8	EPSS 0.5%	CVE-2026-4701Mozilla Firefox · Vulnerability Critical9.8EPSS 0.5%2026-03-24CVE Database V5CVE-2026-4701 Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.8	EPSS 0.9%	CVE-2026-4700Mozilla Firefox · Vulnerability Critical9.8EPSS 0.9%2026-03-24CVE Database V5CVE-2026-4700 Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.9%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	7.5	EPSS 0.7%	CVE-2026-4699Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4699 Incorrect boundary conditions in the Layout: Text and Fonts 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	8.8	EPSS 0.8%	CVE-2026-4698Mozilla Firefox · Vulnerability High8.8EPSS 0.8%2026-03-24CVE Database V5CVE-2026-4698 JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.8%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	7.5	EPSS 0.7%	CVE-2026-4697Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4697 Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.7%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.8	EPSS 1.0%	CVE-2026-4696Mozilla Firefox · Vulnerability Critical9.8EPSS 1.0%2026-03-24CVE Database V5CVE-2026-4696 Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 1.0%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	7.5	EPSS 0.7%	CVE-2026-4695Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4695 Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, 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 0.8%	CVE-2026-4694Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.8%2026-03-24CVE Database V5CVE-2026-4694 Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.8%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	7.5	EPSS 0.7%	CVE-2026-4693Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4693 Incorrect boundary conditions in the Audio/Video: Playback 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
Critical	9.6	EPSS 0.5%	CVE-2026-4692Mozilla Firefox · Vulnerability Critical9.6EPSS 0.5%2026-03-24CVE Database V5CVE-2026-4692 Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.8	EPSS 0.5%	CVE-2026-4691Mozilla Firefox · Vulnerability Critical9.8EPSS 0.5%2026-03-24CVE Database V5CVE-2026-4691 Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.6	EPSS 0.8%	CVE-2026-4690Mozilla Firefox · Vulnerability Critical9.6EPSS 0.8%2026-03-24CVE Database V5CVE-2026-4690 Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.8%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	10.0	EPSS 0.7%	CVE-2026-4689Mozilla Firefox · Buffer Overflow Critical10.0EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4689 Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM 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
Critical	9.6	EPSS 0.6%	CVE-2026-4688Mozilla Firefox · Vulnerability Critical9.6EPSS 0.6%2026-03-24CVE Database V5CVE-2026-4688 Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-03-24
Critical	9.6	EPSS 0.6%	CVE-2026-4687Mozilla Firefox · Buffer Overflow Critical9.6EPSS 0.6%2026-03-24CVE Database V5CVE-2026-4687 Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-03-24
High	7.5	EPSS 0.7%	CVE-2026-4686Mozilla Firefox · Unchecked Error Condition High7.5EPSS 0.7%2026-03-24CVE Database V5CVE-2026-4686 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

Page 31 of 50