| 303473 | Mozilla Firefox ESR < 140.9 | Nessus | MacOS X Local Security Checks | 3/24/2026 | 4/30/2026 | critical |
| 305236 | RHEL 8 : thunderbird (RHSA-2026:6917) | Nessus | Red Hat Local Security Checks | 4/7/2026 | 4/7/2026 | critical |
| 306511 | RHEL 8 : thunderbird (RHSA-2026:8285) | Nessus | Red Hat Local Security Checks | 4/15/2026 | 4/15/2026 | critical |
| 306514 | RHEL 8 : thunderbird (RHSA-2026:8289) | Nessus | Red Hat Local Security Checks | 4/15/2026 | 4/15/2026 | critical |
| 304635 | SUSE SLED15 / SLES15 / openSUSE 15 Security Update : MozillaThunderbird (SUSE-SU-2026:1163-1) | Nessus | SuSE Local Security Checks | 4/2/2026 | 4/2/2026 | critical |
| 310964 | TencentOS Server 3: thunderbird (TSSA-2026:0263) | Nessus | Tencent Local Security Checks | 4/29/2026 | 4/29/2026 | critical |
| 306262 | Amazon Linux 2 : firefox, --advisory ALAS2FIREFOX-2026-056 (ALASFIREFOX-2026-056) | Nessus | Amazon Linux Local Security Checks | 4/14/2026 | 4/14/2026 | critical |
| 303554 | Linux Distros Unpatched Vulnerability : CVE-2026-4712 | Nessus | Misc. | 3/25/2026 | 4/29/2026 | high |
| 304316 | AlmaLinux 9 : firefox (ALSA-2026:5930) | Nessus | Alma Linux Local Security Checks | 3/30/2026 | 3/30/2026 | critical |
| 303505 | Mozilla Thunderbird < 140.9 | Nessus | MacOS X Local Security Checks | 3/24/2026 | 4/30/2026 | critical |
| 303802 | Fedora 43 : firefox / nss (2026-d8099dd719) | Nessus | Fedora Local Security Checks | 3/26/2026 | 3/26/2026 | critical |
| 304324 | RHEL 9 : thunderbird (RHSA-2026:6188) | Nessus | Red Hat Local Security Checks | 3/30/2026 | 3/30/2026 | critical |
| 306108 | RHEL 8 : firefox (RHSA-2026:7840) | Nessus | Red Hat Local Security Checks | 4/13/2026 | 4/13/2026 | critical |
| 304017 | Oracle Linux 8 : firefox (ELSA-2026-5932) | Nessus | Oracle Linux Local Security Checks | 3/27/2026 | 4/30/2026 | critical |
| 304395 | Oracle Linux 9 : thunderbird (ELSA-2026-6188) | Nessus | Oracle Linux Local Security Checks | 3/31/2026 | 4/30/2026 | critical |
| 306034 | RockyLinux 8 : thunderbird (RLSA-2026:6917) | Nessus | Rocky Linux Local Security Checks | 4/11/2026 | 4/11/2026 | critical |
| 304018 | Oracle Linux 9 : firefox (ELSA-2026-5930) | Nessus | Oracle Linux Local Security Checks | 3/27/2026 | 4/30/2026 | critical |
| 303809 | RHEL 9 : firefox (RHSA-2026:5930) | Nessus | Red Hat Local Security Checks | 3/26/2026 | 3/26/2026 | critical |
| 306080 | RHEL 9 : firefox (RHSA-2026:7837) | Nessus | Red Hat Local Security Checks | 4/13/2026 | 4/13/2026 | critical |
