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CVE-2025-8042

Critical

Description

Firefox for Android allowed a sandboxed iframe without the `allow-downloads` attribute to start downloads. This vulnerability was fixed in Firefox 141.

SeverityCritical
CVSS9.8
Exploit probability—
ProductMozilla Firefox
PublishedAug 19, 2025
First seenAug 19, 2025
Weakness typeCWE-732CWE-732

How to fix

Update
  • mozilla firefox141.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 141.0141.0

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