Question 1

What is CVE-2026-117954 — CVE-2026-117954?

Accepted Answer

Use-after-free in the Layout: Positioned component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Question 2

What is the authoritative source for CVE-2026-117954?

Accepted Answer

CVE-2026-117954 (CVE-2026-117954) is catalogued in NVD + CISA KEV + FIRST EPSS and curated for EU compliance use cases by SQUR.

CVE-2026-117954CVE-2026-117954

Description

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