Rapid7

vulnerability

Amazon Linux AMI 2: CVE-2021-23998: Security patch for thunderbird (Multiple Advisories)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
May 26, 2021
Added
May 26, 2021
Modified
May 20, 2026

Description

Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

Solutions

amazon-linux-ami-2-upgrade-thunderbirdamazon-linux-ami-2-upgrade-thunderbird-debuginfo
Title
Rapid7 Labs

2026 Global Threat Landscape Report

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