| 154023 | RHEL 8：firefox (RHSA-2021: 3756) | Nessus | Red Hat Local Security Checks | 2021/10/12 | 2024/11/7 | critical |
| 154077 | RHEL 7：firefox (RHSA-2021:3791) | Nessus | Red Hat Local Security Checks | 2021/10/13 | 2024/11/7 | critical |
| 155551 | CentOS 7: firefox (RHSA-2021:3791) | Nessus | CentOS Local Security Checks | 2021/11/17 | 2024/10/9 | critical |
| 153878 | Mozilla Firefox ESR < 91.2 | Nessus | Windows | 2021/10/5 | 2022/5/9 | critical |
| 153925 | Ubuntu 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-5107-1) | Nessus | Ubuntu Local Security Checks | 2021/10/7 | 2024/8/27 | critical |
| 153997 | Oracle Linux 8 : firefox (ELSA-2021-3755) | Nessus | Oracle Linux Local Security Checks | 2021/10/11 | 2024/10/22 | critical |
| 154183 | SUSE SLED12 / SLES12 Security Update : MozillaFirefox (SUSE-SU-2021:3446-1) | Nessus | SuSE Local Security Checks | 2021/10/17 | 2023/7/13 | critical |
| 154353 | Oracle Linux 7 : thunderbird (ELSA-2021-3841) | Nessus | Oracle Linux Local Security Checks | 2021/10/23 | 2024/10/22 | critical |
| 154193 | openSUSE 15 Security Update : MozillaFirefox (openSUSE-SU-2021:3451-1) | Nessus | SuSE Local Security Checks | 2021/10/17 | 2025/3/6 | critical |
| 153878 | Mozilla Firefox ESR < 91.2 | Nessus | Windows | 2021/10/5 | 2022/5/9 | critical |
| 153925 | Ubuntu 18.04 LTS / 20.04 LTS：Firefox 漏洞 (USN-5107-1) | Nessus | Ubuntu Local Security Checks | 2021/10/7 | 2024/8/27 | critical |
| 153997 | Oracle Linux 8：firefox (ELSA-2021-3755) | Nessus | Oracle Linux Local Security Checks | 2021/10/11 | 2024/10/22 | critical |
| 154353 | Oracle Linux 7：thunderbird (ELSA-2021-3841) | Nessus | Oracle Linux Local Security Checks | 2021/10/23 | 2024/10/22 | critical |
| 154023 | RHEL 8：firefox (RHSA-2021: 3756) | Nessus | Red Hat Local Security Checks | 2021/10/12 | 2024/11/7 | critical |
| 154077 | RHEL 7：firefox (RHSA-2021:3791) | Nessus | Red Hat Local Security Checks | 2021/10/13 | 2024/11/7 | critical |
| 155551 | CentOS 7 : firefox (RHSA-2021:3791) | Nessus | CentOS Local Security Checks | 2021/11/17 | 2024/10/9 | critical |
| 153878 | Mozilla Firefox ESR < 91.2 | Nessus | Windows | 2021/10/5 | 2022/5/9 | critical |
| 153925 | Ubuntu 18.04 LTS / 20.04 LTS：Firefox 弱點 (USN-5107-1) | Nessus | Ubuntu Local Security Checks | 2021/10/7 | 2024/8/27 | critical |
| 153997 | Oracle Linux 8：firefox (ELSA-2021-3755) | Nessus | Oracle Linux Local Security Checks | 2021/10/11 | 2024/10/22 | critical |
| 154353 | Oracle Linux 7：thunderbird (ELSA-2021-3841) | Nessus | Oracle Linux Local Security Checks | 2021/10/23 | 2024/10/22 | critical |
| 154023 | RHEL 8: firefox（RHSA-2021：3756) | Nessus | Red Hat Local Security Checks | 2021/10/12 | 2024/11/7 | critical |
| 154077 | RHEL 7：firefox（RHSA-2021:3791） | Nessus | Red Hat Local Security Checks | 2021/10/13 | 2024/11/7 | critical |
| 155551 | CentOS 7 : firefox (RHSA-2021:3791) | Nessus | CentOS Local Security Checks | 2021/11/17 | 2024/10/9 | critical |
| 156271 | openSUSE 15 セキュリティ更新：MozillaThunderbird（openSUSE-SU-2021:4150-1） | Nessus | SuSE Local Security Checks | 2021/12/25 | 2025/3/6 | critical |
| 154212 | SUSE SLES11 セキュリティ更新プログラム: MozillaFirefox、rust-cbindgen (SUSE-SU-2021:14826-1) | Nessus | SuSE Local Security Checks | 2021/10/19 | 2025/3/6 | critical |
| 153878 | Mozilla Firefox ESR < 91.2 | Nessus | Windows | 2021/10/5 | 2022/5/9 | critical |
| 153925 | Ubuntu 18.04LTS / 20.04LTS : Firefox の脆弱性 (USN-5107-1) | Nessus | Ubuntu Local Security Checks | 2021/10/7 | 2024/8/27 | critical |
| 153997 | Oracle Linux 8：Firefox（ELSA-2021-3755） | Nessus | Oracle Linux Local Security Checks | 2021/10/11 | 2024/10/22 | 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 | 2021/10/17 | 2023/7/13 | critical |
| 154353 | Oracle Linux 7：thunderbird（ELSA-2021-3841） | Nessus | Oracle Linux Local Security Checks | 2021/10/23 | 2024/10/22 | critical |
| 154193 | openSUSE 15 セキュリティ更新: MozillaFirefox (openSUSE-SU-2021:3451-1) | Nessus | SuSE Local Security Checks | 2021/10/17 | 2025/3/6 | critical |
| 250142 | Linux Distros Unpatched Vulnerability : CVE-2021-38498 | Nessus | Misc. | 2025/8/15 | 2025/8/15 | high |
| 153879 | Mozilla Firefox ESR < 91.2 | Nessus | MacOS X Local Security Checks | 2021/10/5 | 2022/5/9 | critical |
| 154156 | CentOS 8 : firefox (CESA-2021:3755) | Nessus | CentOS Local Security Checks | 2021/10/14 | 2022/5/9 | critical |
| 154202 | Scientific Linux Security Update : firefox on SL7.x i686/x86_64 (2021:3791) | Nessus | Scientific Linux Local Security Checks | 2021/10/18 | 2022/5/9 | critical |
| 154341 | Oracle Linux 7 : firefox (ELSA-2021-3791) | Nessus | Oracle Linux Local Security Checks | 2021/10/22 | 2024/10/22 | critical |
| 157839 | Rocky Linux 8 : thunderbird (RLSA-2021:3838) | Nessus | Rocky Linux Local Security Checks | 2022/2/9 | 2023/11/6 | critical |
| 156395 | openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:1635-1) | Nessus | SuSE Local Security Checks | 2021/12/30 | 2025/3/6 | critical |
| 154023 | RHEL 8 : firefox (RHSA-2021:3756) | Nessus | Red Hat Local Security Checks | 2021/10/12 | 2024/11/7 | critical |
| 154077 | RHEL 7 : firefox (RHSA-2021:3791) | Nessus | Red Hat Local Security Checks | 2021/10/13 | 2024/11/7 | critical |
| 155551 | CentOS 7 : firefox (RHSA-2021:3791) | Nessus | CentOS Local Security Checks | 2021/11/17 | 2024/10/9 | critical |
| 174073 | NewStart CGSL CORE 5.05 / MAIN 5.05 : firefox Multiple Vulnerabilities (NS-SA-2023-0009) | Nessus | NewStart CGSL Local Security Checks | 2023/4/11 | 2023/4/18 | critical |
| 156271 | openSUSE 15 Security Update : MozillaThunderbird (openSUSE-SU-2021:4150-1) | Nessus | SuSE Local Security Checks | 2021/12/25 | 2025/3/6 | critical |
| 154212 | SUSE SLES11 Security Update : MozillaFirefox, rust-cbindgen (SUSE-SU-2021:14826-1) | Nessus | SuSE Local Security Checks | 2021/10/19 | 2025/3/6 | critical |
| 250142 | Linux Distros のパッチ未適用の脆弱性: CVE-2021-38498 | Nessus | Misc. | 2025/8/15 | 2025/8/15 | high |
| 153879 | Mozilla Firefox ESR < 91.2 | Nessus | MacOS X Local Security Checks | 2021/10/5 | 2022/5/9 | critical |
| 154156 | CentOS 8：firefox（CESA-2021：3755） | Nessus | CentOS Local Security Checks | 2021/10/14 | 2022/5/9 | critical |
| 154202 | Scientific Linux セキュリティ更新: SL7.x i686/x86_64のfirefox (2021:3791) | Nessus | Scientific Linux Local Security Checks | 2021/10/18 | 2022/5/9 | critical |
| 154341 | Oracle Linux 7：Firefox（ELSA-2021-3791） | Nessus | Oracle Linux Local Security Checks | 2021/10/22 | 2024/10/22 | critical |
| 157839 | Rocky Linux 8thunderbirdRLSA-2021:3838 | Nessus | Rocky Linux Local Security Checks | 2022/2/9 | 2023/11/6 | critical |
