CVE-2022-22739

PoC —

CVSS 3.1

6.5 medium

EPSS

<1%p50

Published

Dec 22, 2022 (Dec 22, 2022)

Modified

Jun 17, 2026

Description

Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

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

NVD CVE.org GitHub PoCs EPSS (0.7%)

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