| 149237 | CentOS 8 : firefox (CESA-2021:1360) | Nessus | CentOS Local Security Checks | 2021/5/3 | 2024/1/2 | high |
| 154623 | NewStart CGSL CORE 5.04 / MAIN 5.04 : firefox Multiple Vulnerabilities (NS-SA-2021-0107) | Nessus | NewStart CGSL Local Security Checks | 2021/10/28 | 2023/11/27 | high |
| 208520 | CentOS 7 : firefox (RHSA-2021:1363) | Nessus | CentOS Local Security Checks | 2024/10/9 | 2024/10/9 | high |
| 208530 | CentOS 7 : thunderbird (RHSA-2021:1350) | Nessus | CentOS Local Security Checks | 2024/10/9 | 2024/10/9 | high |
| 294429 | MiracleLinux 4 : firefox-78.10.0-1.0.1.AXS4 (AXSA:2021-1731:12) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/1/20 | high |
| 294525 | MiracleLinux 8 : firefox-78.10.0-1.0.1.el8 (AXSA:2021-1733:13) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/1/20 | high |
| 148965 | Debian DLA-2632-1 : thunderbird security update | Nessus | Debian Local Security Checks | 2021/4/23 | 2024/1/12 | high |
| 148774 | Mozilla Firefox ESR < 78.10 | Nessus | MacOS X Local Security Checks | 2021/4/19 | 2025/11/18 | high |
| 148984 | RHEL 8 : thunderbird (RHSA-2021:1353) | Nessus | Red Hat Local Security Checks | 2021/4/26 | 2024/11/7 | high |
| 149001 | Oracle Linux 7 : firefox (ELSA-2021-1363) | Nessus | Oracle Linux Local Security Checks | 2021/4/27 | 2024/10/22 | high |
| 149026 | CentOS 8 : thunderbird (CESA-2021:1353) | Nessus | CentOS Local Security Checks | 2021/4/27 | 2024/1/3 | high |
| 149180 | SUSE SLES15 Security Update : MozillaFirefox (SUSE-SU-2021:1433-1) | Nessus | SuSE Local Security Checks | 2021/4/30 | 2024/1/2 | high |
| 149226 | GLSA-202104-09 : Mozilla Thunderbird: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | 2021/5/3 | 2024/1/12 | high |
| 149577 | openSUSE Security Update : MozillaThunderbird (openSUSE-2021-644) | Nessus | SuSE Local Security Checks | 2021/5/18 | 2024/1/1 | high |
| 160862 | NewStart CGSL CORE 5.05 / MAIN 5.05 : firefox Multiple Vulnerabilities (NS-SA-2022-0029) | Nessus | NewStart CGSL Local Security Checks | 2022/5/10 | 2023/10/30 | high |
| 243848 | Linux Distros Unpatched Vulnerability : CVE-2021-23998 | Nessus | Misc. | 2025/8/5 | 2025/8/5 | medium |
| 293849 | MiracleLinux 8 : thunderbird-78.10.0-1.0.1.el8 (AXSA:2021-1726:09) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/1/20 | high |
| 294682 | MiracleLinux 7 : firefox-78.10.0-1.0.1.el7 (AXSA:2021-1724:11) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/1/20 | high |
| 149863 | Amazon Linux 2 : thunderbird (ALAS-2021-1644) | Nessus | Amazon Linux Local Security Checks | 2021/5/24 | 2024/12/11 | high |
