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Vulnerabilities CVE-2026-0877

CVE-2026-0877

None
Open
TLP:CLEAR

Mitigation bypass in the DOM: Security component

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Description

Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7.

Details

EPSS Score
0.43%

35.5th percentile

Confidence
90%
Published
Jan 13, 2026
Last Modified
Jul 15, 2026
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