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Mozilla ThunderbirdSpoofing issue in the Form Autofill component

Risk 27
Severity
6.5
EPSS
0.03%
First published (updated )
CVE-2026-8961

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

Risk 28
Severity
6.5
EPSS
0.01%
First published (updated )
CVE-2026-8971

Mozilla FirefoxOther issue in the JavaScript Engine component

Risk 19
Severity
5.3
EPSS
0.11%
First published (updated )
CVE-2026-8391

Mozilla FirefoxIncorrect boundary conditions in the JavaScript Engine: JIT component

Risk 28
Severity
6.5
EPSS
0.04%
First published (updated )
CVE-2026-8388

Mozilla FirefoxOther issue in the Storage: IndexedDB component

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

Mozilla FirefoxInvalid pointer in the JavaScript: WebAssembly component

Risk 32
Severity
6.3
EPSS
0.04%
First published (updated )
CVE-2026-6757

Mozilla FirefoxOther issue in the Networking: DNS component

Risk 19
Severity
5.3
EPSS
0.06%
First published (updated )
CVE-2026-6777

Mozilla FirefoxInvalid pointer in the Audio/Video: Playback component

Risk 19
Severity
5.3
EPSS
0.04%
First published (updated )
CVE-2026-6778
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Mozilla FirefoxSpoofing issue in the DOM: Core & HTML component

Risk 32
Severity
6.3
EPSS
0.04%
First published (updated )
CVE-2026-6762

Mozilla FirefoxMitigation bypass in the File Handling component

Risk 28
Severity
6.5
EPSS
0.06%
First published (updated )
CVE-2026-6763

Mozilla FirefoxIncorrect boundary conditions, integer overflow in the Audio/Video: Playback component

Risk 19
Severity
5.3
EPSS
0.04%
First published (updated )
CVE-2026-6783

Mozilla FirefoxInformation disclosure in the Form Autofill component

Risk 27
Severity
5.3
EPSS
0.04%
First published (updated )
CVE-2026-6765

Mozilla FirefoxOther issue in the JavaScript Engine component

Risk 19
Severity
5.3
EPSS
0.10%
First published (updated )
CVE-2026-6779
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Mozilla FirefoxOther issue in the Libraries component in NSS

Risk 27
Severity
5.3
EPSS
0.05%
First published (updated )
CVE-2026-6767

Mozilla FirefoxIncorrect boundary conditions in the DOM: Device Interfaces component

Risk 28
Severity
6.5
EPSS
0.06%
First published (updated )
CVE-2026-6764

Mozilla FirefoxMitigation bypass in the DOM: postMessage component

Risk 27
Severity
6.5
EPSS
0.02%
First published (updated )
CVE-2026-6755

Mozilla FirefoxSpoofing issue in the Privacy: Anti-Tracking component

Risk 27
Severity
6.5
EPSS
0.01%
First published (updated )
CVE-2026-4728

Mozilla ThunderbirdSpoofing issue in Thunderbird

Risk 27
Severity
6.5
EPSS
0.03%
First published (updated )
CVE-2026-3889
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Mozilla FirefoxRace condition in the JavaScript: GC component

Risk 21
Severity
4.2
EPSS
0.03%
First published (updated )
CVE-2026-2802

Mozilla FirefoxUse-after-free in the JavaScript: WebAssembly component

Risk 24
Severity
5.4
EPSS
0.03%
First published (updated )
CVE-2026-2804

Mozilla Thunderbird1 vulnerability

Risk 19
Severity
4
First published (updated )
Advisory
MFSA2026-07

CSS-based exfiltration of the content from partially encrypted emails when allowing remote content

Risk 22
Severity
4.3
First published (updated )
CVE-2026-0818

Mozilla Thunderbird1 vulnerability

Risk 19
Severity
4
First published (updated )
Advisory
MFSA2026-08

CSS-based exfiltration of the content from partially encrypted emails when allowing remote content

Risk 22
Severity
4.3
First published (updated )
CVE-2026-0818

Mozilla ThunderbirdClickjacking issue, information disclosure in the PDF Viewer component

Risk 16
Severity
4.3
EPSS
0.03%
First published (updated )
CVE-2026-0887
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Mozilla FirefoxIncorrect boundary conditions in the Graphics component

Risk 27
Severity
5.3
EPSS
0.04%
First published (updated )
CVE-2026-0886

Mozilla ThunderbirdUse-after-free in the JavaScript: GC component

Risk 28
Severity
6.5
EPSS
0.06%
First published (updated )
CVE-2026-0885

Mozilla ThunderbirdSpoofing issue in the DOM: Copy & Paste and Drag & Drop component

Risk 24
Severity
5.4
EPSS
0.04%
First published (updated )
CVE-2026-0890

Mozilla ThunderbirdInformation disclosure in the Networking component

Risk 27
Severity
5.3
EPSS
0.04%
First published (updated )
CVE-2026-0883

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