CVE-2023-6871

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CVSS 3.1

4.3 medium

EPSS

<1%p41

Published

Dec 19, 2023 (Dec 19, 2023)

Modified

Jun 17, 2026

Description

Under certain conditions, Firefox did not display a warning when a user attempted to navigate to a new protocol handler. This vulnerability affects Firefox < 121.

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

NVD CVE.org GitHub PoCs EPSS (0.5%)

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