| 136358 | Mozilla Thunderbird < 68.8.0 | Nessus | MacOS X Local Security Checks | 5/7/2020 | 11/18/2025 | critical |
| 136359 | Mozilla Thunderbird < 68.8.0 | Nessus | Windows | 5/7/2020 | 11/18/2025 | critical |
| 136374 | Debian DSA-4678-1 : firefox-esr - security update | Nessus | Debian Local Security Checks | 5/7/2020 | 3/13/2024 | critical |
| 136390 | Scientific Linux Security Update : firefox on SL7.x x86_64 (20200506) | Nessus | Scientific Linux Local Security Checks | 5/7/2020 | 3/13/2024 | critical |
| 136418 | Oracle Linux 7 : firefox (ELSA-2020-2037) | Nessus | Oracle Linux Local Security Checks | 5/8/2020 | 10/23/2024 | critical |
| 136476 | RHEL 8 : thunderbird (RHSA-2020:2046) | Nessus | Red Hat Local Security Checks | 5/11/2020 | 11/7/2024 | critical |
| 136654 | SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:1218-1) | Nessus | SuSE Local Security Checks | 5/15/2020 | 3/12/2024 | critical |
| 180959 | Oracle Linux 6 : firefox (ELSA-2020-2036) | Nessus | Oracle Linux Local Security Checks | 9/7/2023 | 10/23/2024 | critical |
| 136541 | GLSA-202005-04 : Mozilla Firefox: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | 5/13/2020 | 3/12/2024 | critical |
| 145906 | CentOS 8 : thunderbird (CESA-2020:2046) | Nessus | CentOS Local Security Checks | 2/1/2021 | 1/24/2024 | critical |
| 136343 | RHEL 8 : firefox (RHSA-2020:2032) | Nessus | Red Hat Local Security Checks | 5/6/2020 | 11/7/2024 | critical |
| 138776 | NewStart CGSL MAIN 6.01 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0036) | Nessus | NewStart CGSL Local Security Checks | 7/21/2020 | 4/25/2023 | critical |
| 136420 | Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-4353-1) | Nessus | Ubuntu Local Security Checks | 5/8/2020 | 8/27/2024 | critical |
| 136427 | Debian DLA-2205-1 : firefox-esr security update | Nessus | Debian Local Security Checks | 5/11/2020 | 3/13/2024 | critical |
| 136486 | Scientific Linux Security Update : thunderbird on SL6.x i386/x86_64 (20200511) | Nessus | Scientific Linux Local Security Checks | 5/12/2020 | 3/12/2024 | critical |
| 136487 | Scientific Linux Security Update : thunderbird on SL7.x x86_64 (20200511) | Nessus | Scientific Linux Local Security Checks | 5/12/2020 | 3/12/2024 | critical |
| 136775 | CentOS 6 : thunderbird (RHSA-2020:2049) | Nessus | CentOS Local Security Checks | 5/22/2020 | 10/9/2024 | critical |
| 246095 | Linux Distros Unpatched Vulnerability : CVE-2020-12387 | Nessus | Misc. | 8/8/2025 | 7/24/2026 | high |
