CVE-2022-40959

—

CVSS 3.1

6.5 medium

EPSS

1%p68

Published

Dec 22, 2022 (Dec 22, 2022)

Modified

Jun 17, 2026

Description

During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass that leaked device permissions into untrusted subdocuments. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Vendors: mozilla
Products: firefox, firefox esr, thunderbird
Weakness: CWE-922
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (1.3%)

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