Weakness (CWE)
CWE-416: Use After Free
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
How to prevent it (2 mitigations)
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Architecture and Design
Choose a language that provides automatic memory management.
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Implementation
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
Source: MITRE CWE-416
6,520 results · Feed
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Medium 6.3
Use-after-free in the Layout: Text and Fonts component
Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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Medium 6.3
Use-after-free in the Internationalization component
Use-after-free in the Internationalization component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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Medium 6.3
Use-after-free in the Layout: Scrolling and Overflow component
Use-after-free in the Layout: Scrolling and Overflow component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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High 8.8
Use-after-free in the JavaScript: Standard Library component
Use-after-free in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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High 8.8
Use-after-free in the DOM: Core & HTML component
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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High 7.3
Use-after-free in the JavaScript Engine component
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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High 7.3
Use-after-free in the Layout component
Use-after-free in the Layout component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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High 7.3
Privilege escalation due to use-after-free in the Graphics: Canvas2D component
Privilege escalation due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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Medium 6.3
Use-after-free in the JavaScript: GC component
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 159, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.
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Medium 4.3
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 7.8
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27.2, ma…
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High 7.1
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7…
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High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 27.2 and …
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High 7.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 7.7
A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27.2, ma…
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Medium 4.3
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 7.6
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 8.8
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27, macO…
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High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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Medium 4.3
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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Critical 9.1
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7…
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Medium 6.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 27.2 and …
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High 7.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7…
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Medium 4.3
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 27.2 and …
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Medium 6.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 27.2 and …
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High 7.7
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7…
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Medium 4.3
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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Medium 4.3
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 27.2 and …
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Medium 6.2
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7…
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High 7.8
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 26.7 and iPadOS 26.7, …
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High 7.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 27.2 and iPadOS 27.2, …
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High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 7.7
A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27.2, ma…
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High 7.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in iOS 27.2 and iPadOS 27.2, …
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High 7.5
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Golden Gate 27.2, ma…
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High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 7.5
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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Medium 4.3
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…
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High 8.8
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 27.2, iOS 26.7.2 an…