| 146866 | Oracle Linux 8 : firefox (ELSA-2021-0655) | Nessus | Oracle Linux Local Security Checks | 2/26/2021 | 10/22/2024 | high |
| 146868 | Oracle Linux 8 : thunderbird (ELSA-2021-0657) | Nessus | Oracle Linux Local Security Checks | 2/26/2021 | 10/23/2024 | high |
| 149322 | Ubuntu 20.04 LTS : Thunderbird vulnerabilities (USN-4936-1) | Nessus | Ubuntu Local Security Checks | 5/6/2021 | 8/28/2024 | high |
| 243600 | Linux Distros Unpatched Vulnerability : CVE-2021-23978 | Nessus | Misc. | 8/5/2025 | 8/5/2025 | high |
| 146879 | CentOS 7 : thunderbird (RHSA-2021:0661) | Nessus | CentOS Local Security Checks | 2/27/2021 | 10/9/2024 | high |
| 146882 | CentOS 7 : firefox (RHSA-2021:0656) | Nessus | CentOS Local Security Checks | 2/27/2021 | 10/9/2024 | high |
| 154475 | NewStart CGSL MAIN 6.02 : thunderbird Multiple Vulnerabilities (NS-SA-2021-0119) | Nessus | NewStart CGSL Local Security Checks | 10/27/2021 | 11/27/2023 | high |
| 146892 | Debian DSA-4862-1 : firefox-esr - security update | Nessus | Debian Local Security Checks | 3/1/2021 | 6/3/2021 | high |
| 146940 | SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2021:0667-1) | Nessus | SuSE Local Security Checks | 3/2/2021 | 6/3/2021 | high |
| 146942 | Debian DSA-4866-1 : thunderbird - security update | Nessus | Debian Local Security Checks | 3/2/2021 | 3/8/2021 | high |
| 146784 | Mozilla Thunderbird < 78.8 | Nessus | MacOS X Local Security Checks | 2/23/2021 | 3/5/2021 | high |
| 146812 | RHEL 8 : thunderbird (RHSA-2021:0658) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 146816 | RHEL 7 : thunderbird (RHSA-2021:0661) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 146817 | RHEL 8 : firefox (RHSA-2021:0659) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 149226 | GLSA-202104-09 : Mozilla Thunderbird: Multiple vulnerabilities | Nessus | Gentoo Local Security Checks | 5/3/2021 | 1/12/2024 | high |
| 146870 | CentOS 8 : firefox (CESA-2021:0655) | Nessus | CentOS Local Security Checks | 2/27/2021 | 6/3/2021 | high |
| 146872 | CentOS 8 : thunderbird (CESA-2021:0657) | Nessus | CentOS Local Security Checks | 2/27/2021 | 3/23/2021 | high |
| 146779 | Mozilla Firefox < 86.0 | Nessus | MacOS X Local Security Checks | 2/23/2021 | 1/19/2024 | high |
| 146783 | Mozilla Thunderbird < 78.8 | Nessus | Windows | 2/23/2021 | 3/5/2021 | high |
| 146822 | RHEL 8：thunderbird (RHSA-2021: 0662) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 146865 | Oracle Linux 7：firefox (ELSA-2021-0656) | Nessus | Oracle Linux Local Security Checks | 2/26/2021 | 10/23/2024 | high |
| 146867 | Oracle Linux 7：thunderbird (ELSA-2021-0661) | Nessus | Oracle Linux Local Security Checks | 2/26/2021 | 10/22/2024 | high |
| 146919 | Debian DLA-2575-1：firefox-esr 安全性更新 | Nessus | Debian Local Security Checks | 3/1/2021 | 6/3/2021 | high |
| 148972 | Scientific Linux 安全性更新：SL7.x x86_64 上的 thunderbird (2021:0661) | Nessus | Scientific Linux Local Security Checks | 4/23/2021 | 4/23/2021 | high |
| 148973 | Scientific Linux 安全性更新：SL7.x i686/x86_64 上的 firefox (2021:0656) | Nessus | Scientific Linux Local Security Checks | 4/23/2021 | 4/23/2021 | high |
| 149233 | GLSA-202104-10：Mozilla Firefox：多個弱點 | Nessus | Gentoo Local Security Checks | 5/3/2021 | 1/12/2024 | high |
| 146784 | Mozilla Thunderbird < 78.8 | Nessus | MacOS X Local Security Checks | 2/23/2021 | 3/5/2021 | high |
| 146812 | RHEL 8：thunderbird (RHSA-2021: 0658) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 146816 | RHEL 7：thunderbird (RHSA-2021: 0661) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 146817 | RHEL 8：firefox (RHSA-2021: 0659) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 146892 | Debian DSA-4862-1：firefox-esr - 安全性更新 | Nessus | Debian Local Security Checks | 3/1/2021 | 6/3/2021 | high |
| 146942 | Debian DSA-4866-1：thunderbird - 安全性更新 | Nessus | Debian Local Security Checks | 3/2/2021 | 3/8/2021 | high |
| 154475 | NewStart CGSL MAIN 6.02：thunderbird 多個弱點 (NS-SA-2021-0119) | Nessus | NewStart CGSL Local Security Checks | 10/27/2021 | 11/27/2023 | high |
| 149226 | GLSA-202104-09：Mozilla Thunderbird：多個弱點 | Nessus | Gentoo Local Security Checks | 5/3/2021 | 1/12/2024 | high |
| 146872 | CentOS 8：thunderbird (CESA-2021: 0657) | Nessus | CentOS Local Security Checks | 2/27/2021 | 3/23/2021 | high |
| 146870 | CentOS 8：firefox (CESA-2021: 0655) | Nessus | CentOS Local Security Checks | 2/27/2021 | 6/3/2021 | high |
| 146780 | Mozilla Firefox < 86.0 | Nessus | Windows | 2/23/2021 | 1/19/2024 | high |
| 146781 | Mozilla Firefox ESR < 78.8 | Nessus | Windows | 2/23/2021 | 6/3/2021 | high |
| 146782 | Mozilla Firefox ESR < 78.8 | Nessus | MacOS X Local Security Checks | 2/23/2021 | 6/3/2021 | high |
| 146815 | RHEL 8 : thunderbird（RHSA-2021：0657) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
| 146866 | Oracle Linux 8：SUMM：/ firefox（ELSA-2021-0655） | Nessus | Oracle Linux Local Security Checks | 2/26/2021 | 10/22/2024 | high |
| 146868 | Oracle Linux 8：SUMM：/ thunderbird（ELSA-2021-0657） | Nessus | Oracle Linux Local Security Checks | 2/26/2021 | 10/23/2024 | high |
| 149322 | Ubuntu 20.04 LTS : Thunderbird の脆弱性 (USN-4936-1) | Nessus | Ubuntu Local Security Checks | 5/6/2021 | 8/28/2024 | high |
| 243600 | Linux Distros のパッチ未適用の脆弱性: CVE-2021-23978 | Nessus | Misc. | 8/5/2025 | 8/5/2025 | high |
| 146879 | CentOS 7 : thunderbird (RHSA-2021:0661) | Nessus | CentOS Local Security Checks | 2/27/2021 | 10/9/2024 | high |
| 146882 | CentOS 7 : firefox (RHSA-2021:0656) | Nessus | CentOS Local Security Checks | 2/27/2021 | 10/9/2024 | high |
| 150571 | SUSE SLES11 セキュリティ更新プログラム: MozillaFirefox (SUSE-SU-2021:14657-1) | Nessus | SuSE Local Security Checks | 6/10/2021 | 6/10/2021 | high |
| 146779 | Mozilla Firefox < 86.0 | Nessus | MacOS X Local Security Checks | 2/23/2021 | 1/19/2024 | high |
| 146783 | Mozilla Thunderbird < 78.8 | Nessus | Windows | 2/23/2021 | 3/5/2021 | high |
| 146822 | RHEL 8 : thunderbird（RHSA-2021：0662) | Nessus | Red Hat Local Security Checks | 2/24/2021 | 11/7/2024 | high |
