PT-2026-126552

CVE-2026-117969

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Published

2026-10-27

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Updated

2026-10-28

Description by

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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 An invalid pointer issue exists within the JIT (Just-In-Time) component of the JavaScript Engine. JIT is a method of improving program performance by compiling code during execution rather than before.
Recommendations Update Firefox to version 159 or later. Update Firefox ESR to version 153.6 or later. Update Thunderbird to version 159 or later. Update Thunderbird ESR to version 153.6 or later.
Researchers
Vendors
Affected products
Related identifiers
CVE-2026-117969
OPENSUSE-SU-2026:12319-1
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