Threat database

971 threats

Severity	CVSS	Signals	Threat	Source	Published
Medium	6.5	EPSS 0.2%	CVE-2026-12302Mozilla Firefox · Vulnerability Medium6.5EPSS 0.2%2026-06-16CVE Database V5CVE-2026-12302 CVE-2026-12302 is a mitigation bypass vulnerability in the DOM security component of Mozilla Firefox. It affects Firefox versions prior to 152, Firefox ESR versions up to 140.11, and ESR versions up to 115.36. The vulnerability was fixed in Firefox 152, Firefox ESR 140.12, and Firefox ESR 115.37. The CVSS 3.1 base score is 6.5, indicating a medium severity. This issue allows bypassing security mitigations within the DOM, potentially impacting confidentiality and integrity. No known exploits in the wild have been reported. Mozilla has released official fixes in the stated versions. EPSS 0.2%Vulnerability Mozilla	CVE Database V5	2026-06-16
Medium	5.3	EPSS 0.3%	CVE-2026-12301Mozilla Thunderbird · Memory Buffer Overflow Medium5.3EPSS 0.3%2026-06-16CVE Database V5CVE-2026-12301 Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-06-16
Medium	5.3	EPSS 0.3%	CVE-2026-12300Mozilla Thunderbird · Memory Buffer Overflow Medium5.3EPSS 0.3%2026-06-16CVE Database V5CVE-2026-12300 Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152 and Thunderbird 152. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-06-16
Medium	5.4	EPSS 0.3%	CVE-2026-12299Mozilla Firefox · Vulnerability Medium5.4EPSS 0.3%2026-06-16CVE Database V5CVE-2026-12299 JIT miscompilation in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-06-16
Medium	5.4	EPSS 0.3%	CVE-2026-12298Mozilla Thunderbird · Vulnerability Medium5.4EPSS 0.3%2026-06-16CVE Database V5CVE-2026-12298 Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-06-16
Critical	9.6	EPSS 0.4%	CVE-2026-12297Mozilla Firefox · Memory Buffer Overflow Critical9.6EPSS 0.4%2026-06-16CVE Database V5CVE-2026-12297 Sandbox escape due to incorrect boundary conditions in the Networking component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-06-16
Critical	9.6	EPSS 0.4%	CVE-2026-12296Mozilla Firefox · Vulnerability Critical9.6EPSS 0.4%2026-06-16CVE Database V5CVE-2026-12296 Sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-06-16
Critical	9.6	EPSS 0.4%	CVE-2026-12295Mozilla Firefox · Vulnerability Critical9.6EPSS 0.4%2026-06-16CVE Database V5CVE-2026-12295 Sandbox escape in the DOM: Navigation component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-06-16
Critical	9.6	EPSS 0.4%	CVE-2026-12294Mozilla Firefox · Vulnerability Critical9.6EPSS 0.4%2026-06-16CVE Database V5CVE-2026-12294 Sandbox escape in the DOM: Workers component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-06-16
Critical	9.8	EPSS 0.3%	CVE-2026-12293Mozilla Firefox · Vulnerability Critical9.8EPSS 0.3%2026-06-16CVE Database V5CVE-2026-12293 Use-after-free in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 152 and Thunderbird 152. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-06-16
High	8.1	EPSS 0.5%	CVE-2026-12292Mozilla Firefox · Memory Buffer Overflow High8.1EPSS 0.5%2026-06-16CVE Database V5CVE-2026-12292 Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. EPSS 0.5%Vulnerability Mozilla	CVE Database V5	2026-06-16
High	8.8	EPSS 0.4%	CVE-2026-12291Mozilla Firefox · Vulnerability High8.8EPSS 0.4%2026-06-16CVE Database V5CVE-2026-12291 Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-06-16
High	8.1	EPSS 0.4%	CVE-2026-12290Mozilla Thunderbird · Memory Buffer Overflow High8.1EPSS 0.4%2026-06-16CVE Database V5CVE-2026-12290 Memory safety bug fixed in Thunderbird 152. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-06-16
High	8.8	EPSS 0.4%	CVE-2026-12289Mozilla Firefox · Vulnerability High8.8EPSS 0.4%2026-06-16CVE Database V5CVE-2026-12289 Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. EPSS 0.4%Vulnerability Mozilla	CVE Database V5	2026-06-16
High	7.5	EPSS 0.2%	CVE-2026-11799Mozilla Focus for iOS · Cross-site Scripting High7.5EPSS 0.2%2026-06-09CVE Database V5CVE-2026-11799 UXSS in Focus for iOS / Klar Webkit navigation. This vulnerability was fixed in Focus for iOS 151.3.1 and Klar for iOS 151.3.1. EPSS 0.2%Vulnerability Mozilla	CVE Database V5	2026-06-09
Medium	4.3	EPSS 0.9%	CVE-2026-10702Mozilla Firefox · Vulnerability Medium4.3EPSS 0.9%2026-06-02CVE Database V5CVE-2026-10702 JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3. EPSS 0.9%Vulnerability Mozilla	CVE Database V5	2026-06-02
High	7.5	EPSS 0.3%	CVE-2026-10701Mozilla Firefox · Memory Buffer Overflow High7.5EPSS 0.3%2026-06-02CVE Database V5CVE-2026-10701 Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 151.0.3. EPSS 0.3%Vulnerability Mozilla	CVE Database V5	2026-06-02
Medium	5.4	EPSS 0.2%	CVE-2026-9309Mozilla Firefox for iOS · Cross-site Scripting Medium5.4EPSS 0.2%2026-06-01CVE Database V5CVE-2026-9309 Firefox for iOS Reader View did not properly escape HTML tags in JSON-LD metadata. A malicious page could inject markup that changed Reader View behavior and leaked sensitive URL parameters. These parameters could then be used to access internal pages, potentially resulting in arbitrary JavaScript execution in an internal origin. This vulnerability was fixed in Firefox for iOS 151.2. EPSS 0.2%Vulnerability Mozilla	CVE Database V5	2026-06-01
Medium	5.4	EPSS 0.2%	CVE-2026-9308Mozilla Firefox for iOS · Cross-site Scripting Medium5.4EPSS 0.2%2026-06-01CVE Database V5CVE-2026-9308 Firefox for iOS Reader View replaced page content in its HTML template before replacing other internal placeholders. A malicious page could include a placeholder string that was later substituted with JSON-LD data, potentially resulting in arbitrary JavaScript execution. This vulnerability was fixed in Firefox for iOS 151.2. EPSS 0.2%Vulnerability Mozilla	CVE Database V5	2026-06-01

Page 24 of 50 · 1 duplicate CVE record merged