PT-2026-126550
CVE-2026-117967
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Published
2026-10-27
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Updated
2026-10-29
Description by
Score
N/A
Not availableNo severity ratings or metrics are available. When they are, we'll update the corresponding info on the page.
Name of the Vulnerable Software and Affected Versions
Firefox versions prior to 159
Firefox ESR versions prior to 153.6
Thunderbird versions prior to 159
Thunderbird ESR versions prior to 153.6
Description
A mitigation bypass exists within the DOM Security component.
Recommendations
Update Firefox to version 159.
Update Firefox ESR to version 153.6.
Update Thunderbird to version 159.
Update Thunderbird ESR to version 153.6.
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