| 154023 | RHEL 8：firefox (RHSA-2021: 3756) | Nessus | Red Hat Local Security Checks | 10/12/2021 | 11/7/2024 | critical |
| 156561 | Ubuntu 21.10：thunderbird 弱點 (USN-5132-1) | Nessus | Ubuntu Local Security Checks | 1/7/2022 | 8/28/2024 | critical |
| 154134 | RHEL 7：thunderbird (RHSA-2021: 3841) | Nessus | Red Hat Local Security Checks | 10/14/2021 | 11/7/2024 | critical |
| 157783 | Rocky Linux 8firefox (RLSA-2021:3755) | Nessus | Rocky Linux Local Security Checks | 2/9/2022 | 11/6/2023 | critical |
| 154202 | Scientific Linux 安全性更新：SL7.x i686/x86_64 上的 firefox (2021:3791) | Nessus | Scientific Linux Local Security Checks | 10/18/2021 | 5/9/2022 | critical |
| 154158 | CentOS 8：thunderbird (CESA-2021: 3838) | Nessus | CentOS Local Security Checks | 10/15/2021 | 5/9/2022 | critical |
| 155552 | CentOS 7 : thunderbird (RHSA-2021:3841) | Nessus | CentOS Local Security Checks | 11/17/2021 | 10/9/2024 | critical |
| 154022 | RHEL 8：firefox (RHSA-2021: 3755) | Nessus | Red Hat Local Security Checks | 10/12/2021 | 11/7/2024 | critical |
| 154143 | RHEL 8：thunderbird (RHSA-2021: 3840) | Nessus | Red Hat Local Security Checks | 10/14/2021 | 11/7/2024 | critical |
| 154353 | Oracle Linux 7：thunderbird (ELSA-2021-3841) | Nessus | Oracle Linux Local Security Checks | 10/23/2021 | 10/22/2024 | critical |
| 153881 | Mozilla Firefox < 93.0 | Nessus | Windows | 10/5/2021 | 12/18/2025 | critical |
| 154024 | RHEL 8：firefox (RHSA-2021: 3757) | Nessus | Red Hat Local Security Checks | 10/12/2021 | 11/7/2024 | critical |
| 154077 | RHEL 7：firefox (RHSA-2021:3791) | Nessus | Red Hat Local Security Checks | 10/13/2021 | 11/7/2024 | critical |
| 156961 | Ubuntu 18.04 LTS / 20.04 LTS：thunderbird 弱點 (USN-5248-1) | Nessus | Ubuntu Local Security Checks | 1/22/2022 | 3/6/2025 | critical |
| 154059 | Mozilla Thunderbird < 91.2 | Nessus | Windows | 10/13/2021 | 11/18/2025 | critical |
| 154136 | RHEL 8：thunderbird (RHSA-2021:3839) | Nessus | Red Hat Local Security Checks | 10/14/2021 | 11/7/2024 | critical |
| 157839 | Rocky Linux 8thunderbird (RLSA-2021:3838) | Nessus | Rocky Linux Local Security Checks | 2/9/2022 | 11/6/2023 | critical |
| 154158 | CentOS 8：thunderbird (CESA-2021: 3838) | Nessus | CentOS Local Security Checks | 10/15/2021 | 5/9/2022 | critical |
| 155552 | CentOS 7：thunderbird (RHSA-2021:3841) | Nessus | CentOS Local Security Checks | 11/17/2021 | 10/9/2024 | critical |
| 153881 | Mozilla Firefox < 93.0 | Nessus | Windows | 10/5/2021 | 12/18/2025 | critical |
| 154353 | Oracle Linux 7：thunderbird (ELSA-2021-3841) | Nessus | Oracle Linux Local Security Checks | 10/23/2021 | 10/22/2024 | critical |
| 154022 | RHEL 8：firefox (RHSA-2021: 3755) | Nessus | Red Hat Local Security Checks | 10/12/2021 | 11/7/2024 | critical |
| 154143 | RHEL 8：thunderbird (RHSA-2021: 3840) | Nessus | Red Hat Local Security Checks | 10/14/2021 | 11/7/2024 | critical |
| 154024 | RHEL 8：firefox (RHSA-2021: 3757) | Nessus | Red Hat Local Security Checks | 10/12/2021 | 11/7/2024 | critical |
| 154077 | RHEL 7：firefox (RHSA-2021:3791) | Nessus | Red Hat Local Security Checks | 10/13/2021 | 11/7/2024 | critical |
| 156961 | Ubuntu 18.04 LTS / 20.04 LTS：Thunderbird 漏洞 (USN-5248-1) | Nessus | Ubuntu Local Security Checks | 1/22/2022 | 3/6/2025 | critical |
| 154059 | Mozilla Thunderbird < 91.2 | Nessus | Windows | 10/13/2021 | 11/18/2025 | critical |
| 157839 | Rocky Linux 8thunderbirdRLSA-2021:3838 | Nessus | Rocky Linux Local Security Checks | 2/9/2022 | 11/6/2023 | critical |
| 154136 | RHEL 8 : thunderbird (RHSA-2021:3839) | Nessus | Red Hat Local Security Checks | 10/14/2021 | 11/7/2024 | critical |
| 154214 | openSUSE 15 セキュリティ更新: MozillaFirefox (openSUSE-SU-2021:1367-1) | Nessus | SuSE Local Security Checks | 10/19/2021 | 3/6/2025 | critical |
| 154183 | SUSE SLED12 / SLES12 セキュリティ更新プログラム: MozillaFirefox (SUSE-SU-2021:3446-1) | Nessus | SuSE Local Security Checks | 10/17/2021 | 6/25/2026 | critical |
| 294652 | MiracleLinux 8firefox-91.2.0-4.el8.ML.1AXSA:2021-2461:28 | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | critical |
| 154156 | CentOS 8：firefox（CESA-2021：3755） | Nessus | CentOS Local Security Checks | 10/14/2021 | 5/9/2022 | critical |
| 153879 | Mozilla Firefox ESR < 91.2 | Nessus | MacOS X Local Security Checks | 10/5/2021 | 11/18/2025 | critical |
| 153997 | Oracle Linux 8：Firefox（ELSA-2021-3755） | Nessus | Oracle Linux Local Security Checks | 10/11/2021 | 10/22/2024 | critical |
| 154176 | Oracle Linux 8：thunderbird（ELSA-2021-3838） | Nessus | Oracle Linux Local Security Checks | 10/15/2021 | 10/22/2024 | critical |
| 154201 | Scientific Linux セキュリティ更新: SL7.x x86_64 の thunderbird (2021:3841) | Nessus | Scientific Linux Local Security Checks | 10/18/2021 | 5/9/2022 | critical |
| 163228 | Amazon Linux 2：thunderbird (ALAS-2022-1818) | Nessus | Amazon Linux Local Security Checks | 7/15/2022 | 12/11/2024 | critical |
| 248262 | Linux Distros のパッチ未適用の脆弱性: CVE-2021-38497 | Nessus | Misc. | 8/11/2025 | 7/24/2026 | medium |
| 294640 | MiracleLinux 8thunderbird-91.2.0-1.el8.ML.1AXSA:2021-2482:19 | Nessus | Miracle Linux Local Security Checks | 1/20/2026 | 1/20/2026 | critical |
| 155551 | CentOS 7 : firefox (RHSA-2021:3791) | Nessus | CentOS Local Security Checks | 11/17/2021 | 10/9/2024 | critical |
| 154058 | Mozilla Thunderbird < 91.2 | Nessus | MacOS X Local Security Checks | 10/13/2021 | 11/18/2025 | critical |
| 153878 | Mozilla Firefox ESR < 91.2 | Nessus | Windows | 10/5/2021 | 11/18/2025 | critical |
| 154135 | RHEL 8 : thunderbird（RHSA-2021：3838) | Nessus | Red Hat Local Security Checks | 10/14/2021 | 11/7/2024 | critical |
| 154341 | Oracle Linux 7：Firefox（ELSA-2021-3791） | Nessus | Oracle Linux Local Security Checks | 10/22/2021 | 10/22/2024 | critical |
| 153925 | Ubuntu 18.04LTS / 20.04LTS : Firefox の脆弱性 (USN-5107-1) | Nessus | Ubuntu Local Security Checks | 10/7/2021 | 8/27/2024 | critical |
| 154193 | openSUSE 15 セキュリティ更新: MozillaFirefox (openSUSE-SU-2021:3451-1) | Nessus | SuSE Local Security Checks | 10/17/2021 | 3/6/2025 | critical |
| 291431 | MiracleLinux 7firefox-91.2.0-5.0.1.el7.AXS7AXBA:2021-2506:30 | Nessus | Miracle Linux Local Security Checks | 1/19/2026 | 1/19/2026 | critical |
| 153880 | Mozilla Firefox < 93.0 | Nessus | MacOS X Local Security Checks | 10/5/2021 | 12/18/2025 | critical |
| 156561 | Ubuntu 21.10LTS：Thunderbirdの脆弱性 (USN-5132-1) | Nessus | Ubuntu Local Security Checks | 1/7/2022 | 8/28/2024 | critical |
