CWE-416
Use After Free
VariantStableLikelihood: High
Description
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Hierarchy (View 1000)
Parents
Children
none
CVEs mapped to this weakness (687)
page 3 of 35| CVE | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2026-4723 | Cri | 0.64 | 9.8 | 0.00 | Mar 24, 2026 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149 and Thunderbird 149. | |
| CVE-2026-4711 | Cri | 0.64 | 9.8 | 0.00 | Mar 24, 2026 | Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | |
| CVE-2026-4701 | Cri | 0.64 | 9.8 | 0.00 | Mar 24, 2026 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | |
| CVE-2026-4696 | Cri | 0.64 | 9.8 | 0.00 | Mar 24, 2026 | Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | |
| CVE-2026-4691 | Cri | 0.64 | 9.8 | 0.00 | Mar 24, 2026 | Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9. | |
| CVE-2026-2799 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | |
| CVE-2026-2797 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | |
| CVE-2026-2795 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148 and Thunderbird 148. | |
| CVE-2026-2789 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | 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. | |
| CVE-2026-2787 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | 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. | |
| CVE-2026-2786 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | 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. | |
| CVE-2026-2772 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| CVE-2026-2770 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| CVE-2026-2767 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| CVE-2026-2766 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| CVE-2026-2765 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | 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. | |
| CVE-2026-2764 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| CVE-2026-2763 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| CVE-2026-2758 | Cri | 0.64 | 9.8 | 0.00 | Feb 24, 2026 | Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. | |
| CVE-2026-0884 | Cri | 0.64 | 9.8 | 0.00 | Jan 13, 2026 | Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7. |