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Unrated severityNVD Advisory· Published Sep 3, 2024· Updated Nov 4, 2025

CVE-2024-8383

CVE-2024-8383

Description

Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support. It did not ask before doing so for the Usenet-related schemes news: and snews:. Since most operating systems don't have a trusted newsreader installed by default, an unscrupulous program that the user downloaded could register itself as a handler. The website that served the application download could then launch that application at will. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15.

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Affected products

30

Patches

Vulnerability mechanics

References

4

News mentions

0

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