Mozilla Firefox and Thunderbird Denial-of-Service Vulnerability
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.
- Vendor
- Mozilla
- Product
- Firefox and Thunderbird
- CVSS
- 8.8
- EPSS (exploit probability)
- 69.0%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Published
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.
Added to CISA’s Known Exploited Vulnerabilities catalog on 2022-03-28. Required action per CISA: Apply updates per vendor instructions. Due date: 2022-04-18.
This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.