Threat database

971 threats

Threat database
Severity	CVSS	Signals	Threat	Source	Published
Critical	9.8	EPSS 0.4%	CVE-2026-2634Mozilla Firefox for iOS · Vulnerability Critical9.8EPSS 0.4%2026-02-24CVE Database V5CVE-2026-2634 Malicious scripts could cause desynchronization between the address bar and web content before a response is received in Firefox iOS, allowing attacker-controlled pages to be presented under spoofed domains. This vulnerability was fixed in Firefox for iOS 147.4. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.4%	CVE-2026-2793Mozilla Firefox · Vulnerability Critical9.8EPSS 0.4%2026-02-24CVE Database V5CVE-2026-2793 Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, 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, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.4%	CVE-2026-2792Mozilla Firefox · Vulnerability Critical9.8EPSS 0.4%2026-02-24CVE Database V5CVE-2026-2792 Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, 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, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.6%	CVE-2026-2791Mozilla Firefox · Vulnerability Critical9.8EPSS 0.6%2026-02-24CVE Database V5CVE-2026-2791 Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.3%	CVE-2026-2790Mozilla Firefox · Vulnerability High8.8EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2790 Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.5%	CVE-2026-2789Mozilla Firefox · Vulnerability High8.8EPSS 0.5%2026-02-24CVE Database V5CVE-2026-2789 Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.7%	CVE-2026-2788Mozilla Firefox · Memory Buffer Overflow Critical9.8EPSS 0.7%2026-02-24CVE Database V5CVE-2026-2788 Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.7%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.6%	CVE-2026-2787Mozilla Firefox · Vulnerability High8.8EPSS 0.6%2026-02-24CVE Database V5CVE-2026-2787 Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.5%	CVE-2026-2786Mozilla Firefox · Vulnerability High8.8EPSS 0.5%2026-02-24CVE Database V5CVE-2026-2786 Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.6%	CVE-2026-2785Mozilla Firefox · Vulnerability High8.8EPSS 0.6%2026-02-24CVE Database V5CVE-2026-2785 Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.5%	CVE-2026-2784Mozilla Firefox · Vulnerability Critical9.8EPSS 0.5%2026-02-24CVE Database V5CVE-2026-2784 Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-02-24
Medium	6.5	EPSS 0.3%	CVE-2026-2783Mozilla Firefox · Information Exposure Medium6.5EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2783 Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.3%	CVE-2026-2782Mozilla Firefox · Vulnerability High8.8EPSS 0.3%2026-02-24CVE Database V5CVE-2026-2782 Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.4%	CVE-2026-2781Mozilla Firefox · Vulnerability High8.8EPSS 0.4%2026-02-24CVE Database V5CVE-2026-2781 Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-02-24
High	8.8	EPSS 0.4%	CVE-2026-2780Mozilla Firefox · Vulnerability High8.8EPSS 0.4%2026-02-24CVE Database V5CVE-2026-2780 Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.7%	CVE-2026-2779Mozilla Firefox · Memory Buffer Overflow Critical9.8EPSS 0.7%2026-02-24CVE Database V5CVE-2026-2779 Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.7%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	10.0	EPSS 0.6%	CVE-2026-2778Mozilla Firefox · Memory Buffer Overflow Critical10.0EPSS 0.6%2026-02-24CVE Database V5CVE-2026-2778 Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.4%	CVE-2026-2777Mozilla Firefox · Vulnerability Critical9.8EPSS 0.4%2026-02-24CVE Database V5CVE-2026-2777 Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	10.0	EPSS 0.6%	CVE-2026-2776Mozilla Firefox · Memory Buffer Overflow Critical10.0EPSS 0.6%2026-02-24CVE Database V5CVE-2026-2776 Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.6%Vulnerability Mozilla	CVE Database V5	2026-02-24
Critical	9.8	EPSS 0.8%	CVE-2026-2775Mozilla Firefox · Vulnerability Critical9.8EPSS 0.8%2026-02-24CVE Database V5CVE-2026-2775 Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. EPSS 0.8%Vulnerability Mozilla	CVE Database V5	2026-02-24

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