Disclosure summary
Mozilla Firefox and Thunderbird do not properly handle onreadystatechange events in conjunction with page reloading, which allows remote attackers to cause a denial-of-service (DoS) or possibly execute malicious code via a crafted web site.
CISA remediation guidance
Apply updates per vendor instructions.
Original records & references
PUBLISHED 2022-03-28T00:00:00-04:00
MODIFIED 2022-03-28T00:00:00-04:00
INGESTED 2026-10-06T11:42:58-04:00