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6.1 Medium

CVE-2026-109770 Spoofing issue in the DOM: Web Serial component

Description

Spoofing issue in the DOM: Web Serial component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

Affected products and versions

Product Affected versions Fixed in
Firefox 158 earliest → < 158 158
Firefox 153.5 earliest → < 153.5 153.5
Thunderbird 158 earliest → < 158 158
Thunderbird 153.5 earliest → < 153.5 153.5

References

Timeline

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