CVE-2022-31737
CWE-787Published: December 22, 2022· Updated: Jun 17, 2026
Official Description
A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
Risk Analysis
A flaw in WebGL allows for an out-of-bounds write, which can cause memory corruption and potentially exploitable crashes. This critical vulnerability allows for remote compromise of the affected application.
No public exploit is known, and it is not tracked in the KEV catalog. The flaw is remotely exploitable.
Update to Firefox 101, Firefox ESR 91.10, or Thunderbird 91.10 to patch the WebGL implementation.
Technical Analysis
CVE-2022-31737 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-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (9)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-31737 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts