CVE-2022-45407

HIGH

Firefox < 107.0 - Use-After-Free via FontFace() on Background Worker

Title source: llm
STIX 2.1

Description

If an attacker loaded a font using <code>FontFace()</code> on a background worker, a use-after-free could have occurred, leading to a potentially exploitable crash. This vulnerability affects Firefox < 107.

References (2)

Core 2
Core References
Issue Tracking, Permissions Required, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1793314

Scores

CVSS v3 7.5
EPSS 0.0041
EPSS Percentile 61.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (1)
mozilla/firefox < 107.0
Published Dec 22, 2022
Tracked Since Feb 18, 2026