| 304538 | AlmaLinux 10 : thunderbird (ALSA-2026:6342) | Nessus | Alma Linux Local Security Checks | 4/1/2026 | 4/1/2026 | critical |
| 305150 | RockyLinux 9 : thunderbird (RLSA-2026:6188) | Nessus | Rocky Linux Local Security Checks | 4/7/2026 | 4/7/2026 | critical |
| 305755 | RockyLinux 10 : thunderbird (RLSA-2026:6342) | Nessus | Rocky Linux Local Security Checks | 4/9/2026 | 4/9/2026 | critical |
| 306109 | RHEL 10 : firefox (RHSA-2026:7843) | Nessus | Red Hat Local Security Checks | 4/13/2026 | 4/13/2026 | critical |
| 304408 | Fedora 42 : firefox / nss (2026-49237e1ced) | Nessus | Fedora Local Security Checks | 3/31/2026 | 4/30/2026 | critical |
| 303469 | Mozilla Firefox ESR < 115.34 | Nessus | Windows | 3/24/2026 | 4/30/2026 | critical |
| 303472 | Mozilla Firefox ESR < 140.9 | Nessus | Windows | 3/24/2026 | 4/30/2026 | critical |
| 303503 | Mozilla Thunderbird < 140.9 | Nessus | Windows | 3/24/2026 | 4/30/2026 | critical |
| 303506 | Mozilla Thunderbird < 149.0 | Nessus | Windows | 3/24/2026 | 4/30/2026 | critical |
| 303891 | Debian dla-4511 : thunderbird - security update | Nessus | Debian Local Security Checks | 3/26/2026 | 4/30/2026 | critical |
| 303892 | Debian dsa-6179 : thunderbird - security update | Nessus | Debian Local Security Checks | 3/26/2026 | 4/30/2026 | critical |
| 303894 | Debian dla-4510 : firefox-esr - security update | Nessus | Debian Local Security Checks | 3/26/2026 | 3/26/2026 | critical |
| 304502 | RHEL 10 : thunderbird (RHSA-2026:6342) | Nessus | Red Hat Local Security Checks | 4/1/2026 | 4/1/2026 | critical |
| 304564 | Oracle Linux 10 : thunderbird (ELSA-2026-6342) | Nessus | Oracle Linux Local Security Checks | 4/1/2026 | 4/30/2026 | critical |
| 304847 | MiracleLinux 9 : thunderbird-140.9.0-1.el9_7.ML.1 (AXSA:2026-395:06) | Nessus | Miracle Linux Local Security Checks | 4/4/2026 | 4/5/2026 | critical |
| 305099 | RockyLinux 8 : firefox (RLSA-2026:5932) | Nessus | Rocky Linux Local Security Checks | 4/6/2026 | 4/6/2026 | critical |
| 305766 | RockyLinux 10 : firefox (RLSA-2026:5931) | Nessus | Rocky Linux Local Security Checks | 4/9/2026 | 4/9/2026 | critical |
| 306083 | RHEL 8 : firefox (RHSA-2026:7842) | Nessus | Red Hat Local Security Checks | 4/13/2026 | 4/13/2026 | critical |
| 306160 | RHEL 8 : firefox (RHSA-2026:7838) | Nessus | Red Hat Local Security Checks | 4/13/2026 | 4/13/2026 | critical |
| 306515 | RHEL 8 : thunderbird (RHSA-2026:8288) | Nessus | Red Hat Local Security Checks | 4/15/2026 | 4/15/2026 | critical |
| 306725 | RHEL 7 : firefox (RHSA-2026:8427) | Nessus | Red Hat Local Security Checks | 4/16/2026 | 4/16/2026 | critical |
| 307264 | MiracleLinux 8 : thunderbird-140.9.0-1.el8_10.ML.1 (AXSA:2026-444:07) | Nessus | Miracle Linux Local Security Checks | 4/17/2026 | 4/19/2026 | critical |
| 306216 | Amazon Linux 2023 : firefox (ALAS2023-2026-1554) | Nessus | Amazon Linux Local Security Checks | 4/13/2026 | 4/13/2026 | critical |
| 306281 | Amazon Linux 2 : thunderbird, --advisory ALAS2-2026-3241 (ALAS-2026-3241) | Nessus | Amazon Linux Local Security Checks | 4/14/2026 | 4/14/2026 | critical |
