| 156144 | openSUSE 15 Security Update : MozillaFirefox (openSUSE-SU-2021:1575-1) | Nessus | SuSE Local Security Checks | 2021/12/17 | 2021/12/30 | high |
| 156271 | openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:4150-1) | Nessus | SuSE Local Security Checks | 2021/12/25 | 2025/3/6 | critical |
| 156292 | SUSE SLED15: MozillaThunderbird / MozillaThunderbird-translations-common / etc (SUSE-SU-2021:4150-1) | Nessus | SuSE Local Security Checks | 2021/12/25 | 2026/6/26 | critical |
| 159007 | GLSA-202202-03 : Mozilla Firefox: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | 2022/3/17 | 2025/3/6 | critical |
| 247425 | Linux Distros Unpatched Vulnerability : CVE-2021-43546 | Nessus | Misc. | 2025/8/10 | 2026/7/24 | medium |
| 155919 | Mozilla Thunderbird < 91.4.0 | Nessus | Windows | 2021/12/8 | 2025/11/18 | critical |
| 155918 | Mozilla Firefox < 95.0 | Nessus | MacOS X Local Security Checks | 2021/12/8 | 2025/11/18 | critical |
| 155957 | Oracle Linux 8 : firefox (ELSA-2021-5013) | Nessus | Oracle Linux Local Security Checks | 2021/12/9 | 2024/10/22 | high |
| 156191 | Debian DSA-5026-1 : firefox-esr - security update | Nessus | Debian Local Security Checks | 2021/12/19 | 2025/1/24 | critical |
| 156457 | Debian DLA-2874-1 : thunderbird - LTS security update | Nessus | Debian Local Security Checks | 2022/1/4 | 2022/5/6 | critical |
| 156962 | Ubuntu 21.10 : Thunderbird vulnerabilities (USN-5246-1) | Nessus | Ubuntu Local Security Checks | 2022/1/22 | 2024/8/28 | critical |
| 208493 | CentOS 7 : firefox (RHSA-2021:5014) | Nessus | CentOS Local Security Checks | 2024/10/9 | 2024/10/9 | critical |
| 155916 | Mozilla Firefox ESR < 91.4.0 | Nessus | MacOS X Local Security Checks | 2021/12/8 | 2025/11/18 | critical |
| 155954 | RHEL 7 : firefox (RHSA-2021:5014) | Nessus | Red Hat Local Security Checks | 2021/12/8 | 2024/11/7 | critical |
| 155976 | RHEL 8 : thunderbird (RHSA-2021:5048) | Nessus | Red Hat Local Security Checks | 2021/12/10 | 2024/11/7 | critical |
| 155953 | Scientific Linux Security Update : firefox on SL7.x i686/x86_64 (2021:5014) | Nessus | Scientific Linux Local Security Checks | 2021/12/8 | 2021/12/30 | high |
| 155996 | CentOS 8 : thunderbird (CESA-2021:5045) | Nessus | CentOS Local Security Checks | 2021/12/10 | 2023/11/22 | high |
| 156008 | SUSE SLED15: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2021:3993-1) | Nessus | SuSE Local Security Checks | 2021/12/11 | 2026/6/25 | high |
| 156012 | SUSE SLES11: MozillaFirefox / MozillaFirefox-translations-common / etc (SUSE-SU-2021:14859-1) | Nessus | SuSE Local Security Checks | 2021/12/11 | 2026/6/25 | high |
| 156451 | Debian DSA-5034-1 : thunderbird - security update | Nessus | Debian Local Security Checks | 2022/1/3 | 2025/1/24 | critical |
| 293837 | MiracleLinux 8 : firefox-91.4.0-1.el8.ML.1 (AXSA:2022-2971:02) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/1/20 | high |
| 294165 | MiracleLinux 8 : thunderbird-91.4.0-2.el8.ML.1 (AXSA:2022-2970:01) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/1/20 | high |
| 155971 | RHEL 8 : firefox (RHSA-2021:5017) | Nessus | Red Hat Local Security Checks | 2021/12/10 | 2024/11/7 | critical |
| 184485 | Rocky Linux 8 : thunderbird (RLSA-2021:5045) | Nessus | Rocky Linux Local Security Checks | 2023/11/6 | 2023/11/6 | critical |
| 155920 | Mozilla Thunderbird < 91.4.0 | Nessus | MacOS X Local Security Checks | 2021/12/8 | 2025/11/18 | critical |
| 155974 | RHEL 7 : thunderbird (RHSA-2021:5046) | Nessus | Red Hat Local Security Checks | 2021/12/10 | 2024/11/7 | critical |
| 155988 | RHEL 8 : thunderbird (RHSA-2021:5045) | Nessus | Red Hat Local Security Checks | 2021/12/10 | 2024/11/7 | critical |
| 155991 | Oracle Linux 8 : thunderbird (ELSA-2021-5045) | Nessus | Oracle Linux Local Security Checks | 2021/12/10 | 2024/10/23 | high |
| 155997 | CentOS 8 : firefox (CESA-2021:5013) | Nessus | CentOS Local Security Checks | 2021/12/10 | 2023/11/22 | high |
| 157549 | AlmaLinux 8 : thunderbird (ALSA-2021:5045) | Nessus | Alma Linux Local Security Checks | 2022/2/9 | 2022/2/14 | high |
| 157614 | AlmaLinux 8 : firefox (ALSA-2021:5013) | Nessus | Alma Linux Local Security Checks | 2022/2/9 | 2022/2/14 | high |
| 208604 | CentOS 7 : thunderbird (RHSA-2021:5046) | Nessus | CentOS Local Security Checks | 2024/10/9 | 2024/10/9 | critical |
| 206859 | NewStart CGSL MAIN 6.02 : firefox Multiple Vulnerabilities (NS-SA-2024-0066) | Nessus | NewStart CGSL Local Security Checks | 2024/9/10 | 2025/9/25 | critical |
| 155915 | Mozilla Firefox ESR < 91.4.0 | Nessus | Windows | 2021/12/8 | 2025/11/18 | critical |
| 155993 | Oracle Linux 7 : thunderbird (ELSA-2021-5046) | Nessus | Oracle Linux Local Security Checks | 2021/12/10 | 2024/10/22 | high |
| 184541 | Rocky Linux 8 : firefox (RLSA-2021:5013) | Nessus | Rocky Linux Local Security Checks | 2023/11/6 | 2023/11/6 | critical |
| 294186 | MiracleLinux 7 : firefox-91.4.0-1.0.1.el7.AXS7 (AXSA:2021-2597:33) | Nessus | Miracle Linux Local Security Checks | 2026/1/20 | 2026/1/20 | high |
| 155917 | Mozilla Firefox < 95.0 | Nessus | Windows | 2021/12/8 | 2025/11/18 | critical |
| 155968 | RHEL 8 : firefox (RHSA-2021:5013) | Nessus | Red Hat Local Security Checks | 2021/12/10 | 2024/11/7 | critical |
| 155970 | Ubuntu 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-5186-1) | Nessus | Ubuntu Local Security Checks | 2021/12/10 | 2024/8/27 | high |
| 156019 | SUSE SLED12: MozillaFirefox / MozillaFirefox-devel / etc (SUSE-SU-2021:4000-1) | Nessus | SuSE Local Security Checks | 2021/12/13 | 2026/6/25 | high |
| 156385 | Debian DLA-2863-1 : firefox-esr - LTS security update | Nessus | Debian Local Security Checks | 2021/12/29 | 2025/1/24 | critical |
| 156395 | openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:1635-1) | Nessus | SuSE Local Security Checks | 2021/12/30 | 2025/3/6 | critical |
| 156961 | Ubuntu 18.04 LTS / 20.04 LTS : Thunderbird vulnerabilities (USN-5248-1) | Nessus | Ubuntu Local Security Checks | 2022/1/22 | 2025/3/6 | critical |
| 163986 | GLSA-202208-14 : Mozilla Thunderbird: Multiple Vulnerabilities | Nessus | Gentoo Local Security Checks | 2022/8/10 | 2023/10/16 | critical |
