| 142610 | Mozilla Firefox < 82.0.3 | Nessus | MacOS X Local Security Checks | 2020/11/9 | 2025/11/18 | high |
| 142844 | GLSA-202011-07 : Mozilla Firefox: Remote code execution | Nessus | Gentoo Local Security Checks | 2020/11/12 | 2022/3/3 | high |
| 142849 | Debian DLA-2448-1 : firefox-esr security update | Nessus | Debian Local Security Checks | 2020/11/12 | 2022/3/2 | high |
| 142871 | RHEL 7 : firefox (RHSA-2020:5099) | Nessus | Red Hat Local Security Checks | 2020/11/13 | 2024/11/7 | high |
| 142877 | Oracle Linux 7 : firefox (ELSA-2020-5099) | Nessus | Oracle Linux Local Security Checks | 2020/11/13 | 2024/10/22 | high |
| 143000 | Scientific Linux Security Update : firefox on SL7.x i686/x86_64 (2020:5099) | Nessus | Scientific Linux Local Security Checks | 2020/11/18 | 2022/3/1 | high |
| 143054 | RHEL 8 : thunderbird (RHSA-2020:5146) | Nessus | Red Hat Local Security Checks | 2020/11/18 | 2024/11/7 | high |
| 143114 | CentOS 7 : firefox (RHSA-2020:5099) | Nessus | CentOS Local Security Checks | 2020/11/19 | 2024/10/9 | high |
| 143160 | RHEL 7 : thunderbird (RHSA-2020:5163) | Nessus | Red Hat Local Security Checks | 2020/11/23 | 2024/11/7 | high |
| 143163 | RHEL 8 : thunderbird (RHSA-2020:5167) | Nessus | Red Hat Local Security Checks | 2020/11/23 | 2024/11/7 | high |
| 143586 | Amazon Linux 2 : thunderbird (ALAS-2020-1572) | Nessus | Amazon Linux Local Security Checks | 2020/12/9 | 2024/12/11 | critical |
| 143843 | SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:3311-1) | Nessus | SuSE Local Security Checks | 2020/12/9 | 2022/3/1 | high |
| 247211 | Linux Distros Unpatched Vulnerability : CVE-2020-26950 | Nessus | Misc. | 2025/8/10 | 2026/7/24 | high |
| 275701 | Mozilla Thunderbird < 78.4.2 | Nessus | MacOS X Local Security Checks | 2025/11/18 | 2025/11/18 | high |
| 147407 | NewStart CGSL MAIN 4.06 : firefox Multiple Vulnerabilities (NS-SA-2021-0004) | Nessus | NewStart CGSL Local Security Checks | 2021/3/10 | 2023/4/25 | critical |
| 150609 | SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14542-1) | Nessus | SuSE Local Security Checks | 2021/6/10 | 2022/3/1 | high |
| 142730 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Firefox vulnerability (USN-4625-1) | Nessus | Ubuntu Local Security Checks | 2020/11/11 | 2024/8/29 | high |
| 142896 | Oracle Linux 6 : firefox (ELSA-2020-5104) | Nessus | Oracle Linux Local Security Checks | 2020/11/14 | 2024/10/22 | high |
| 142948 | openSUSE Security Update : MozillaFirefox (openSUSE-2020-1919) | Nessus | SuSE Local Security Checks | 2020/11/17 | 2022/3/3 | high |
| 143118 | Oracle Linux 8 : thunderbird (ELSA-2020-5146) | Nessus | Oracle Linux Local Security Checks | 2020/11/19 | 2024/10/22 | high |
| 275621 | Mozilla Thunderbird < 78.4.2 | Nessus | Windows | 2025/11/18 | 2025/11/18 | high |
| 294445 | MiracleLinux 4 : firefox-78.4.1-1.0.1.AXS4 (AXSA:2020-926:24) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/2/4 | high |
| 143197 | Oracle Linux 7 : thunderbird (ELSA-2020-5163) | Nessus | Oracle Linux Local Security Checks | 2020/11/23 | 2024/10/22 | high |
| 143246 | Scientific Linux Security Update : thunderbird on SL6.x i686/x86_64 (2020:5164) | Nessus | Scientific Linux Local Security Checks | 2020/11/24 | 2022/3/1 | high |
| 143295 | openSUSE Security Update : MozillaThunderbird (openSUSE-2020-2022) | Nessus | SuSE Local Security Checks | 2020/11/30 | 2022/3/3 | high |
| 147312 | NewStart CGSL MAIN 4.06 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0002) | Nessus | NewStart CGSL Local Security Checks | 2021/3/10 | 2023/4/25 | critical |
| 154543 | NewStart CGSL CORE 5.05 / MAIN 5.05 : firefox Multiple Vulnerabilities (NS-SA-2021-0154) | Nessus | NewStart CGSL Local Security Checks | 2021/10/27 | 2022/5/9 | critical |
