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Mozilla FirefoxJIT miscompilation in the JavaScript Engine: JIT component

Risk 19
Severity
4
First published (updated )
CVE-2026-16392

Mozilla FirefoxSpoofing issue in the Address Bar component

Risk 37
Severity
6.5
First published (updated )
CVE-2026-16403

Mozilla ThunderbirdOff-by-one out of bounds read in MIME header parser for forwarding

Risk 19
Severity
4
First published (updated )
CVE-2026-14899

Mozilla FirefoxInvalid pointer in the JavaScript: WebAssembly component

Risk 22
Severity
4.3
First published (updated )
CVE-2026-15718

Mozilla FirefoxSite isolation issue in the DOM: Navigation component

Risk 34
Severity
5.4
First published (updated )
CVE-2026-15719
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Mozilla ThunderbirdDenial-of-service via malicious LDAP address-book server

Risk 31
Severity
5.3
First published (updated )
CVE-2026-57962

Mozilla ThunderbirdChat UI manipulation by injection

Risk 40
Severity
6.5
First published (updated )
CVE-2026-57963

Mozilla Firefox ESRMemory safety bugs present in Firefox ESR 140.11, Thunderbird ESR 140.11, Firefox 151 and Thunderbir…

Risk 19
Severity
4
First published (updated )
REDHAT-BUG-2489211

Mozilla FirefoxMemory safety bug fixed in Thunderbird 152

Risk 27
Severity
5.3
First published (updated )
CVE-2026-12300

Mozilla FirefoxDenial-of-service in the Audio/Video: Playback component

Risk 37
Severity
6.5
First published (updated )
CVE-2026-12319
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Mozilla ThunderbirdInformation disclosure, sandbox escape in the Security: Process Sandboxing component

Risk 24
Severity
4.7
First published (updated )
CVE-2026-12313

Mozilla FirefoxInformation disclosure due to incorrect boundary conditions in the Graphics: WebGPU component

Risk 22
Severity
4.3
First published (updated )
CVE-2026-12303

Mozilla FirefoxDenial-of-service in the Graphics: ImageLib component

Risk 37
Severity
6.5
First published (updated )
CVE-2026-12325

Mozilla FirefoxInformation disclosure in the Password Manager component

Risk 22
Severity
4.3
First published (updated )
CVE-2026-12320

Mozilla ThunderbirdMemory safety bug fixed in Thunderbird 152

Risk 27
Severity
5.3
First published (updated )
CVE-2026-12306
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Mozilla FirefoxSpoofing issue in the DOM: Core & HTML component

Risk 34
Severity
5.4
First published (updated )
CVE-2026-12323

Mozilla ThunderbirdInformation disclosure, sandbox escape in the Security: Process Sandboxing component

Risk 24
Severity
4.7
First published (updated )
CVE-2026-12311

Mozilla ThunderbirdMemory safety bug fixed in Thunderbird 152

Risk 27
Severity
5.3
First published (updated )
CVE-2026-12307

Mozilla ThunderbirdMitigation bypass in the DOM: Security component

Risk 40
Severity
6.5
First published (updated )
CVE-2026-12302

Mozilla ThunderbirdMemory safety bug fixed in Thunderbird 152

Risk 27
Severity
5.3
First published (updated )
CVE-2026-12308
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Mozilla Firefox ESRIncorrect boundary conditions in the Internationalization component

Risk 34
Severity
5.4
First published (updated )
CVE-2026-12330

Mozilla FirefoxMemory safety bug fixed in Thunderbird 152

Risk 27
Severity
5.3
First published (updated )
CVE-2026-12301

Mozilla ThunderbirdMemory safety bug fixed in Thunderbird 152

Risk 40
Severity
6.5
First published (updated )
CVE-2026-12309

Mozilla FirefoxClickjacking issue in the Widget: Gtk component

Risk 34
Severity
5.4
First published (updated )
CVE-2026-12322

Mozilla FirefoxJIT miscompilation in the JavaScript: WebAssembly component

Risk 34
Severity
5.4
First published (updated )
CVE-2026-12321
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Mozilla ThunderbirdSpoofing issue in the Form Autofill component

Risk 27
Severity
6.5
EPSS
0.32%
First published (updated )
CVE-2026-8961

Mozilla FirefoxSame-origin policy bypass in the Networking: JAR component

Risk 28
Severity
6.5
EPSS
0.21%
First published (updated )
CVE-2026-8971

Mozilla FirefoxOther issue in the Storage: IndexedDB component

Risk 28
Severity
6.5
EPSS
0.06%
First published (updated )
CVE-2026-6770

Mozilla FirefoxMitigation bypass in the DOM: Security component

Risk 25
Severity
5.4
EPSS
0.04%
First published (updated )
CVE-2026-6774

Mozilla FirefoxIncorrect boundary conditions in the WebRTC component

Risk 19
Severity
5.3
EPSS
0.04%
First published (updated )
CVE-2026-6775
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