| 307897 | Mozilla Firefox ESR < 140.10 | Nessus | MacOS X Local Security Checks | 4/21/2026 | 4/23/2026 | critical |
| 307895 | Mozilla Firefox < 150.0 | Nessus | MacOS X Local Security Checks | 4/21/2026 | 4/27/2026 | medium |
| 309098 | Mozilla Thunderbird < 150.0 | Nessus | MacOS X Local Security Checks | 4/21/2026 | 4/27/2026 | medium |
| 309901 | Debian dla-4546 : firefox-esr - security update | Nessus | Debian Local Security Checks | 4/23/2026 | 4/23/2026 | critical |
| 310549 | RHEL 8 : firefox (RHSA-2026:10766) | Nessus | Red Hat Local Security Checks | 4/27/2026 | 4/27/2026 | critical |
| 310712 | RockyLinux 9 : firefox (RLSA-2026:10757) | Nessus | Rocky Linux Local Security Checks | 4/28/2026 | 4/28/2026 | critical |
| 309101 | Mozilla Thunderbird < 140.10 | Nessus | MacOS X Local Security Checks | 4/21/2026 | 4/24/2026 | critical |
| 309100 | Mozilla Thunderbird < 150.0 | Nessus | Windows | 4/21/2026 | 4/27/2026 | medium |
| 310077 | Fedora 44 : firefox / nss (2026-fb08ad61f2) | Nessus | Fedora Local Security Checks | 4/24/2026 | 4/24/2026 | medium |
| 310350 | Debian dla-4549 : thunderbird - security update | Nessus | Debian Local Security Checks | 4/26/2026 | 4/26/2026 | critical |
| 310550 | RHEL 10 : firefox (RHSA-2026:10767) | Nessus | Red Hat Local Security Checks | 4/27/2026 | 4/27/2026 | critical |
| 310731 | Oracle Linux 8 : firefox (ELSA-2026-10766) | Nessus | Oracle Linux Local Security Checks | 4/28/2026 | 4/28/2026 | critical |
| 310573 | Fedora 42 : firefox / nss (2026-69538c9f7e) | Nessus | Fedora Local Security Checks | 4/28/2026 | 4/28/2026 | medium |
| 310663 | Oracle Linux 10 : firefox (ELSA-2026-10767) | Nessus | Oracle Linux Local Security Checks | 4/28/2026 | 4/28/2026 | critical |
| 310711 | RockyLinux 10 : firefox (RLSA-2026:10767) | Nessus | Rocky Linux Local Security Checks | 4/28/2026 | 4/28/2026 | critical |
| 307899 | Mozilla Firefox < 150.0 | Nessus | Windows | 4/21/2026 | 4/27/2026 | medium |
| 309199 | Debian dsa-6225 : firefox-esr - security update | Nessus | Debian Local Security Checks | 4/22/2026 | 4/22/2026 | critical |
| 310182 | Debian dsa-6229 : thunderbird - security update | Nessus | Debian Local Security Checks | 4/24/2026 | 4/24/2026 | critical |
| 310553 | RHEL 9 : firefox (RHSA-2026:10757) | Nessus | Red Hat Local Security Checks | 4/27/2026 | 4/27/2026 | critical |
| 307894 | Mozilla Firefox ESR < 140.10 | Nessus | Windows | 4/21/2026 | 4/23/2026 | critical |
| 309144 | Slackware Linux 15.0 / current mozilla-firefox Multiple Vulnerabilities (SSA:2026-111-02) | Nessus | Slackware Local Security Checks | 4/22/2026 | 4/22/2026 | critical |
| 309049 | Linux Distros Unpatched Vulnerability : CVE-2026-6764 | Nessus | Misc. | 4/21/2026 | 4/28/2026 | medium |
| 309099 | Mozilla Thunderbird < 140.10 | Nessus | Windows | 4/21/2026 | 4/24/2026 | critical |
| 310666 | openSUSE 16 Security Update : MozillaFirefox (openSUSE-SU-2026:20621-1) | Nessus | SuSE Local Security Checks | 4/28/2026 | 4/28/2026 | critical |
| 310655 | Oracle Linux 9 : firefox (ELSA-2026-10757) | Nessus | Oracle Linux Local Security Checks | 4/28/2026 | 4/28/2026 | critical |
