CVE-2022-46882
CWE-416Published: December 22, 2022· Updated: Jun 17, 2026
Official Description
A use-after-free in WebGL extensions could have led to a potentially exploitable crash. This vulnerability affects Firefox < 107, Firefox ESR < 102.6, and Thunderbird < 102.6.
Risk Analysis
A use-after-free vulnerability in WebGL extensions within Mozilla products can lead to crashes or arbitrary code execution. The flaw is remotely exploitable and carries a critical severity rating.
No public exploit is known, and the vulnerability is not in the CISA KEV catalog.
Update Firefox, Firefox ESR, and Thunderbird to the versions specified in the vendor security advisory.
Technical Analysis
CVE-2022-46882 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (12)
Quick Facts
Related CVEs (CWE-416)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-46882 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts