TH
Product
Thunderbird
On CISA KEVExploited in the wildRansomware-linked
2,073
CVEs
14
On KEV
10.0
Max CVSS
77
New 30D
Severity mix
Critical 379High 120Medium 1Low 0
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Add Thunderbird to your stack to get only the CVEs that touch what you run.
| CVE | CVSS | Published | Summary · affected versions |
|---|---|---|---|
| CVE-2026-92058 | 8.8 | Sep 15 | Use-after-free in the Graphics component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92056 | 8.8 | Sep 15 | Use-after-free in the Graphics: Text component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92055 | 8.8 | Sep 15 | Privilege escalation in the DevTools component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92054 | 8.8 | Sep 15 | Privilege escalation in the Memory component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92053 | 8.8 | Sep 15 | Privilege escalation in the Graphics: CanvasWebGL component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92052 | 8.8 | Sep 15 | Privilege escalation due to uninitialized memory in the Graphics: CanvasWebGL component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92049 | 8.8 | Sep 15 | Use-after-free in the Widget: Win32 component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92047 | 8.8 | Sep 15 | Privilege escalation in the Crash Reporting component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92046 | 8.8 | Sep 15 | Use-after-free in the Graphics component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92043 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Audio/Video component Affected: before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92040 | 8.8 | Sep 15 | Use-after-free in the JavaScript: WebAssembly component Affected: before 156.0 |
| CVE-2026-92029 | 8.8 | Sep 15 | Use-after-free in the SVG component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92028 | 8.8 | Sep 15 | Use-after-free in the DOM: Core & HTML component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92027 | 8.8 | Sep 15 | Use-after-free in the DOM: Streams component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92026 | 8.8 | Sep 15 | Use-after-free in the Networking component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92025 | 8.8 | Sep 15 | Use-after-free in the DOM: Navigation component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92024 | 8.8 | Sep 15 | Use-after-free in the SVG component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92023 | 8.8 | Sep 15 | Use-after-free in the XML component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92022 | 8.8 | Sep 15 | Use-after-free in the DOM: HTML Parser component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92021 | 8.8 | Sep 15 | Use-after-free in the JavaScript Engine: JIT component Affected: before 140.16.0 |
| CVE-2026-92020 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: WebRender component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92017 | 8.8 | Sep 15 | Privilege escalation in the DOM: Service Workers component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92016 | 8.8 | Sep 15 | Use-after-free in the Disability Access APIs component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92015 | 8.8 | Sep 15 | Privilege escalation in the WebExtensions component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92014 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics component Affected: before 140.16.0 |
| CVE-2026-92013 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92012 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92011 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92010 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92009 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92008 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92007 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-92006 | 8.8 | Sep 15 | Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0 |
| CVE-2026-84128 | 8.8 | Sep 1 | Privilege escalation in the WebDriver BiDi component Affected: before 155.0 |
| CVE-2026-84123 | 8.8 | Sep 1 | Privilege escalation due to use-after-free in the Graphics: WebGPU component Affected: before 153.2.0; 154.0 before 155.0 |
| CVE-2026-84131 | 8.8 | Sep 1 | Privilege escalation due to invalid pointer in the Graphics component Affected: before 140.15.0; 141.0 before 153.2.0; 154.0 before 155.0 |
| CVE-2026-74955 | 8.8 | Aug 18 | Privilege escalation in the Request Handling component Affected: before 153.1.0; before 154.0 |
| CVE-2026-74952 | 8.8 | Aug 18 | Privilege escalation in the Application Update component Affected: before 154.0 |
| CVE-2026-74950 | 8.8 | Aug 18 | Privilege escalation in the Downloads API component Affected: before 153.1.0; before 154.0 |
| CVE-2026-74947 | 8.8 | Aug 18 | Privilege escalation due to invalid pointer in the Graphics component Affected: before 153.1.0; before 154.0 |
| CVE-2026-74937 | 8.8 | Aug 18 | Use-after-free in the JavaScript: GC component Affected: before 153.1.0; before 154.0 |
| CVE-2026-74969 | 8.8 | Aug 18 | Race condition, use-after-free in the Layout: Text and Fonts component Affected: before 140.14.0; 141.0 before 153.1.0 |
| CVE-2026-74965 | 8.8 | Aug 18 | Privilege escalation in the Shell Integration component Affected: before 140.14.0; before 154.0; 153.0 before 153.1.0 |
| CVE-2026-74953 | 8.8 | Aug 18 | Privilege escalation in the Networking: Cookies component Affected: before 140.14.0; 141.0 before 153.1.0 |
| CVE-2026-74949 | 8.8 | Aug 18 | Use-after-free in the Graphics: Canvas2D component Affected: before 140.14.0; 141.0 before 153.1.0 |
| CVE-2026-74946 | 8.8 | Aug 18 | Information disclosure due to incorrect boundary conditions in the Graphics: CanvasWebGL component Affected: before 140.14.0; 141.0 before 153.1.0 |
| CVE-2026-74942 | 8.8 | Aug 18 | Privilege escalation in the Remote Settings Client component Affected: before 140.14.0; 141.0 before 153.1.0 |
| CVE-2026-74941 | 8.8 | Aug 18 | Privilege escalation in the Graphics: CanvasWebGL component Affected: before 140.14.0; 141.0 before 153.1.0 |
| CVE-2026-74939 | 8.8 | Aug 18 | Privilege escalation in the DOM: Navigation component Affected: before 140.14.0; 141.0 before 153.1.0 |
| CVE-2026-74935 | 8.8 | Aug 18 | Privilege escalation in the DOM: Networking component Affected: before 140.14.0; 141.0 before 153.1.0 |
The 500 most important CVEs for this product (exploited first, then by severity)
