| 303569 | Slackware Linux 15.0 / current mozilla-firefox Multiple Vulnerabilities (SSA:2026-083-01) | Nessus | Slackware Local Security Checks | 3/25/2026 | 3/26/2026 | critical |
| 304448 | Fedora 42 : firefox (2026-a026a1b0c5) | Nessus | Fedora Local Security Checks | 3/31/2026 | 4/30/2026 | critical |
| 304557 | MiracleLinux 8 : firefox-140.9.0-1.el8_10.ML.1 (AXSA:2026-373:06) | Nessus | Miracle Linux Local Security Checks | 4/1/2026 | 4/1/2026 | 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 |
| 305236 | RHEL 8 : thunderbird (RHSA-2026:6917) | Nessus | Red Hat Local Security Checks | 4/7/2026 | 4/7/2026 | critical |
| 305303 | Oracle Linux 8 : thunderbird (ELSA-2026-6917) | Nessus | Oracle Linux Local Security Checks | 4/8/2026 | 4/30/2026 | 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 |
| 306510 | RHEL 9 : thunderbird (RHSA-2026:8284) | Nessus | Red Hat Local Security Checks | 4/15/2026 | 4/15/2026 | 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 |
| 310964 | TencentOS Server 3: thunderbird (TSSA-2026:0263) | Nessus | Tencent Local Security Checks | 4/29/2026 | 4/29/2026 | critical |
| 304477 | MiracleLinux 9 : firefox-140.9.0-1.el9_7.ML.1 (AXSA:2026-372:05) | Nessus | Miracle Linux Local Security Checks | 4/1/2026 | 4/2/2026 | critical |
| 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 |
| 303471 | Mozilla Firefox < 149.0 | Nessus | MacOS X Local Security Checks | 3/24/2026 | 4/30/2026 | critical |
| 303504 | Mozilla Thunderbird < 149.0 | Nessus | MacOS X Local Security Checks | 3/24/2026 | 4/30/2026 | critical |
| 303745 | Debian dsa-6178 : firefox-esr - security update | Nessus | Debian Local Security Checks | 3/25/2026 | 3/26/2026 | critical |
| 303805 | RHEL 8 : firefox (RHSA-2026:5932) | Nessus | Red Hat Local Security Checks | 3/26/2026 | 3/26/2026 | critical |
| 304314 | AlmaLinux 10 : firefox (ALSA-2026:5931) | Nessus | Alma Linux Local Security Checks | 3/30/2026 | 3/30/2026 | critical |
| 304408 | Fedora 42 : firefox / nss (2026-49237e1ced) | Nessus | Fedora Local Security Checks | 3/31/2026 | 4/30/2026 | critical |
| 316673 | TencentOS Server 3: firefox (TSSA-2026:0397) | Nessus | Tencent Local Security Checks | 5/26/2026 | 5/26/2026 | critical |
