| 293826 | MiracleLinux 4 : thunderbird-78.13.0-1.0.1.AXS4 (AXSA:2021-2374:16) | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | high |
| 293912 | MiracleLinux 8 : thunderbird-78.13.0-1.el8.ML.1 (AXSA:2021-2370:15) | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | high |
| 152535 | Debian DLA-2740-1 : firefox-esr - LTS security update | Nessus | Debian Local Security Checks | 8/12/2021 | 12/4/2023 | high |
| 152769 | openSUSE 15 Security Update : MozillaFirefox (openSUSE-SU-2021:1184-1) | Nessus | SuSE Local Security Checks | 8/24/2021 | 12/4/2023 | high |
| 153132 | Debian DLA-2745-1 : thunderbird - LTS security update | Nessus | Debian Local Security Checks | 9/8/2021 | 1/24/2025 | high |
| 152415 | Mozilla Firefox ESR < 78.13 | Nessus | MacOS X Local Security Checks | 8/10/2021 | 11/18/2025 | high |
| 152452 | Mozilla Thunderbird < 78.13 | Nessus | Windows | 8/11/2021 | 11/18/2025 | high |
| 152504 | Mozilla Thunderbird < 91.0 | Nessus | MacOS X Local Security Checks | 8/11/2021 | 11/18/2025 | high |
| 152508 | Ubuntu 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-5037-1) | Nessus | Ubuntu Local Security Checks | 8/12/2021 | 8/27/2024 | high |
| 152568 | Debian DSA-4959-1 : thunderbird - security update | Nessus | Debian Local Security Checks | 8/15/2021 | 1/24/2025 | high |
| 152581 | RHEL 7 : firefox (RHSA-2021:3154) | Nessus | Red Hat Local Security Checks | 8/16/2021 | 11/7/2024 | high |
| 152690 | SUSE SLED15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2021:2774-1) | Nessus | SuSE Local Security Checks | 8/20/2021 | 6/25/2026 | high |
| 249796 | Linux Distros Unpatched Vulnerability : CVE-2021-29980 | Nessus | Misc. | 8/15/2025 | 7/24/2026 | high |
| 152580 | RHEL 8 : thunderbird (RHSA-2021:3161) | Nessus | Red Hat Local Security Checks | 8/16/2021 | 11/7/2024 | high |
| 154214 | openSUSE 15 Security Update : MozillaFirefox (openSUSE-SU-2021:1367-1) | Nessus | SuSE Local Security Checks | 10/19/2021 | 3/6/2025 | critical |
| 152953 | Ubuntu 18.04 LTS / 20.04 LTS : Thunderbird vulnerabilities (USN-5058-1) | Nessus | Ubuntu Local Security Checks | 9/1/2021 | 8/27/2024 | high |
| 152602 | RHEL 7 : thunderbird (RHSA-2021:3160) | Nessus | Red Hat Local Security Checks | 8/16/2021 | 11/7/2024 | high |
| 152695 | openSUSE 15 Security Update : MozillaFirefox (openSUSE-SU-2021:2774-1) | Nessus | SuSE Local Security Checks | 8/20/2021 | 12/4/2023 | high |
| 157795 | Rocky Linux 8 : firefox (RLSA-2021:3157) | Nessus | Rocky Linux Local Security Checks | 2/9/2022 | 11/9/2023 | high |
| 294398 | MiracleLinux 4 : firefox-78.13.0-2.0.1.AXS4 (AXSA:2021-2377:24) | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | high |
