vulnerability
Amazon Linux AMI 2: CVE-2026-4705: Security patch for firefox, thunderbird (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 10 | (AV:N/AC:L/Au:N/C:C/I:C/A:C) | May 20, 2026 | May 20, 2026 | May 20, 2026 |
Severity
10
CVSS
(AV:N/AC:L/Au:N/C:C/I:C/A:C)
Published
May 20, 2026
Added
May 20, 2026
Modified
May 20, 2026
Description
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Solutions
amazon-linux-ami-2-upgrade-firefoxamazon-linux-ami-2-upgrade-thunderbird
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.