CVE-2022-45406

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CVSS 3.1

9.8 critical

EPSS

1%p63

Published

Dec 22, 2022 (Dec 22, 2022)

Modified

Jun 17, 2026

Description

If an out-of-memory condition occurred when creating a JavaScript global, a JavaScript realm may be deleted while references to it lived on in a BaseShape. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Vendors: mozilla
Products: firefox, firefox esr, thunderbird
Weakness: CWE-416
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.1%)

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