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Mozilla Thunderbird

Current version

158.0

Version trail

All 136 versions

winget:Mozilla.Thunderbird

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Version 158.0 of Mozilla Thunderbird on Windows has no known open CVE (2131 referenced, fixed or indeterminable).

Known vulnerabilities: 2,131
Still open: 0
KEV open: 0
Max CVSS (open): -

Known vulnerabilities (CVE)

200 fixed

Latest matched CVE: 2026

Test a different version

CVE	Status	Severity	Vector	KEV	Published	Fixed in
CVE-2026-110249 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-110247 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109781 Fixed MEDIUM 6.5 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 6.5	Network	—	2026-10-13	158
CVE-2026-109780 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109779 Fixed MEDIUM 4.2 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.2	Network	—	2026-10-13	158
CVE-2026-109778 Fixed HIGH 8.8 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.8	Network	—	2026-10-13	158
CVE-2026-109777 Fixed MEDIUM 4.3 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.3	Network	—	2026-10-13	158
CVE-2026-109776 Fixed MEDIUM 4.2 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.2	Network	—	2026-10-13	158
CVE-2026-109775 Fixed MEDIUM 6.5 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 6.5	Network	—	2026-10-13	158
CVE-2026-109774 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109773 Fixed MEDIUM 6.5 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 6.5	Network	—	2026-10-13	158
CVE-2026-109772 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109771 Fixed MEDIUM 4.3 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.3	Network	—	2026-10-13	158
CVE-2026-109770 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109769 Fixed MEDIUM 4.3 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.3	Network	—	2026-10-13	158
CVE-2026-109768 Fixed MEDIUM 6.5 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 6.5	Network	—	2026-10-13	158
CVE-2026-109767 Fixed MEDIUM 4.3 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.3	Network	—	2026-10-13	158
CVE-2026-109766 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109765 Fixed MEDIUM 4.2 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.2	Network	—	2026-10-13	158
CVE-2026-109764 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109763 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109762 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109761 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109760 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109759 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109757 Fixed HIGH 8.3 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.3	Network	—	2026-10-13	158
CVE-2026-109756 Fixed HIGH 8.8 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.8	Network	—	2026-10-13	158
CVE-2026-109755 Fixed CRITICAL 9.6 Network Fixed in: 158 2026-10-13	Fixed	CRITICAL 9.6	Network	—	2026-10-13	158
CVE-2026-109754 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109753 Fixed HIGH 8.1 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.1	Network	—	2026-10-13	158
CVE-2026-109752 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109751 Fixed MEDIUM 4.3 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.3	Network	—	2026-10-13	158
CVE-2026-109750 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109749 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109748 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109747 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109746 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109745 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109744 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109743 Fixed HIGH 8.8 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.8	Network	—	2026-10-13	158
CVE-2026-109742 Fixed MEDIUM 4.3 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.3	Network	—	2026-10-13	158
CVE-2026-109741 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109740 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109739 Fixed HIGH 8.8 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.8	Network	—	2026-10-13	158
CVE-2026-109738 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109737 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109736 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109735 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109734 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109733 Fixed HIGH 8.1 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.1	Network	—	2026-10-13	158
CVE-2026-109732 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109731 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109730 Fixed HIGH 8.8 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.8	Network	—	2026-10-13	158
CVE-2026-109729 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109728 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109727 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109726 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109725 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109724 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109723 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109722 Fixed HIGH 8.1 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.1	Network	—	2026-10-13	158
CVE-2026-109721 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109720 Fixed HIGH · vendor Fixed in: 158 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	158
CVE-2026-109719 Fixed MEDIUM 4.2 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 4.2	Network	—	2026-10-13	158
CVE-2026-109718 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109717 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109716 Fixed HIGH 8.1 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.1	Network	—	2026-10-13	158
CVE-2026-109715 Fixed HIGH 8.1 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.1	Network	—	2026-10-13	158
CVE-2026-109714 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109713 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109712 Fixed HIGH 7.1 Network Fixed in: 158 2026-10-13	Fixed	HIGH 7.1	Network	—	2026-10-13	158
CVE-2026-109711 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109710 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109709 Fixed HIGH 8.8 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.8	Network	—	2026-10-13	158
CVE-2026-109708 Fixed CRITICAL 9.6 Network Fixed in: 158 2026-10-13	Fixed	CRITICAL 9.6	Network	—	2026-10-13	158
CVE-2026-109707 Fixed CRITICAL 9.6 Network Fixed in: 158 2026-10-13	Fixed	CRITICAL 9.6	Network	—	2026-10-13	158
CVE-2026-109706 Fixed MEDIUM 5.4 Network Fixed in: 158 2026-10-13	Fixed	MEDIUM 5.4	Network	—	2026-10-13	158
CVE-2026-109705 Fixed CRITICAL 9.6 Network Fixed in: 158 2026-10-13	Fixed	CRITICAL 9.6	Network	—	2026-10-13	158
CVE-2026-109704 Fixed HIGH 8.8 Network Fixed in: 158 2026-10-13	Fixed	HIGH 8.8	Network	—	2026-10-13	158

Show 121 CVEs fixed in earlier versions

CVE	Status	Severity	Vector	KEV	Published	Fixed in
CVE-2026-109783 Fixed HIGH · vendor Fixed in: 153.5 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	153.5
CVE-2026-109782 Fixed HIGH · vendor Fixed in: 153.5 2026-10-13	Fixed	HIGH · vendor	—	—	2026-10-13	153.5
CVE-2026-103500 Fixed MEDIUM 6.1 Local Fixed in: 140.17.0 2026-09-30	Fixed	MEDIUM 6.1	Local	—	2026-09-30	140.17.0
CVE-2026-96869 Fixed MEDIUM 4.3 Network Fixed in: 140.17.0 2026-09-29	Fixed	MEDIUM 4.3	Network	—	2026-09-29	140.17.0
CVE-2026-100832 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100831 Fixed HIGH 8.8 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	153.4.0
CVE-2026-100830 Fixed HIGH 8.1 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	153.4.0
CVE-2026-100829 Fixed CRITICAL 9.6 Network Fixed in: 153.4.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	153.4.0
CVE-2026-100828 Fixed CRITICAL 9.6 Network Fixed in: 153.4.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	153.4.0
CVE-2026-100826 Fixed MEDIUM 6.5 Network Fixed in: 153.4.0 2026-09-29	Fixed	MEDIUM 6.5	Network	—	2026-09-29	153.4.0
CVE-2026-100825 Fixed HIGH 8.8 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	153.4.0
CVE-2026-100824 Fixed HIGH 8.8 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	153.4.0
CVE-2026-100822 Fixed MEDIUM 5.4 Network Fixed in: 153.4.0 2026-09-29	Fixed	MEDIUM 5.4	Network	—	2026-09-29	153.4.0
CVE-2026-100821 Fixed MEDIUM 4.7 Network Fixed in: 140.17.0 2026-09-29	Fixed	MEDIUM 4.7	Network	—	2026-09-29	140.17.0
CVE-2026-100820 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100819 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100818 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100817 Fixed MEDIUM 5.4 Network Fixed in: 157.0 2026-09-29	Fixed	MEDIUM 5.4	Network	—	2026-09-29	157.0
CVE-2026-100816 Fixed HIGH 8.1 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	153.4.0
CVE-2026-100815 Fixed HIGH 8.8 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	153.4.0
CVE-2026-100814 Fixed HIGH 8.8 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	153.4.0
CVE-2026-100813 Fixed HIGH 8.8 Network Fixed in: 157.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157.0
CVE-2026-100812 Fixed MEDIUM 6.5 Network Fixed in: 153.4.0 2026-09-29	Fixed	MEDIUM 6.5	Network	—	2026-09-29	153.4.0
CVE-2026-100811 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100810 Fixed CRITICAL 9.8 Network Fixed in: 157.0 2026-09-29	Fixed	CRITICAL 9.8	Network	—	2026-09-29	157.0
CVE-2026-100809 Fixed HIGH 8.1 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	153.4.0
CVE-2026-100808 Fixed HIGH 8.8 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	153.4.0
CVE-2026-100807 Fixed HIGH 8.8 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157
CVE-2026-100806 Fixed MEDIUM 4.3 Network Fixed in: 157 2026-09-29	Fixed	MEDIUM 4.3	Network	—	2026-09-29	157
CVE-2026-100805 Fixed HIGH 7.5 Network Fixed in: 157 2026-09-29	Fixed	HIGH 7.5	Network	—	2026-09-29	157
CVE-2026-100804 Fixed CRITICAL 9.6 Network Fixed in: 157 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	157
CVE-2026-100803 Fixed HIGH 8.1 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	157
CVE-2026-100802 Fixed MEDIUM 4.3 Network Fixed in: 157 2026-09-29	Fixed	MEDIUM 4.3	Network	—	2026-09-29	157
CVE-2026-100801 Fixed HIGH 8.8 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157
CVE-2026-100800 Fixed CRITICAL 9.6 Network Fixed in: 157 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	157
CVE-2026-100799 Fixed MEDIUM 4.3 Network Fixed in: 157 2026-09-29	Fixed	MEDIUM 4.3	Network	—	2026-09-29	157
CVE-2026-100798 Fixed HIGH 8.1 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	157
CVE-2026-100797 Fixed HIGH 8.8 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157
CVE-2026-100796 Fixed HIGH 8.8 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157
CVE-2026-100795 Fixed MEDIUM 6.5 Network Fixed in: 157 2026-09-29	Fixed	MEDIUM 6.5	Network	—	2026-09-29	157
CVE-2026-100794 Fixed CRITICAL 9.6 Network Fixed in: 157 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	157
CVE-2026-100793 Fixed MEDIUM 6.5 Network Fixed in: 157 2026-09-29	Fixed	MEDIUM 6.5	Network	—	2026-09-29	157
CVE-2026-100792 Fixed HIGH 7.1 Network Fixed in: 157 2026-09-29	Fixed	HIGH 7.1	Network	—	2026-09-29	157
CVE-2026-100791 Fixed HIGH 8.8 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157
CVE-2026-100790 Fixed HIGH 8.8 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157
CVE-2026-100789 Fixed HIGH 8.8 Network Fixed in: 157 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157
CVE-2026-100788 Fixed CRITICAL 9.8 Network Fixed in: 157 2026-09-29	Fixed	CRITICAL 9.8	Network	—	2026-09-29	157
CVE-2026-100787 Fixed CRITICAL 9.6 Network Fixed in: 153.4.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	153.4.0
CVE-2026-100786 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100785 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100784 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100783 Fixed MEDIUM 4.3 Network Fixed in: 140.17.0 2026-09-29	Fixed	MEDIUM 4.3	Network	—	2026-09-29	140.17.0
CVE-2026-100782 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100781 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100780 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100779 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100778 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100777 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100776 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100775 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100774 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100773 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100772 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100771 Fixed HIGH 8.1 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	140.17.0
CVE-2026-100770 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100769 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100768 Fixed HIGH 8.8 Network Fixed in: 157.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157.0
CVE-2026-100767 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100766 Fixed MEDIUM 4.3 Network Fixed in: 140.17.0 2026-09-29	Fixed	MEDIUM 4.3	Network	—	2026-09-29	140.17.0
CVE-2026-100765 Fixed HIGH 8.8 Network Fixed in: 153.4.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	153.4.0
CVE-2026-100764 Fixed HIGH 8.8 Network Fixed in: 157.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157.0
CVE-2026-100763 Fixed CRITICAL 9.1 Network Fixed in: 157.0 2026-09-29	Fixed	CRITICAL 9.1	Network	—	2026-09-29	157.0
CVE-2026-100762 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100761 Fixed HIGH 8.8 Network Fixed in: 157.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	157.0
CVE-2026-100760 Fixed CRITICAL 9.6 Network Fixed in: 153.4.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	153.4.0
CVE-2026-100759 Fixed HIGH 8.1 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	140.17.0
CVE-2026-100758 Fixed CRITICAL 9.6 Network Fixed in: 140.17.0 2026-09-29	Fixed	CRITICAL 9.6	Network	—	2026-09-29	140.17.0
CVE-2026-100757 Fixed HIGH 8.8 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.8	Network	—	2026-09-29	140.17.0
CVE-2026-100756 Fixed HIGH 8.1 Network Fixed in: 140.17.0 2026-09-29	Fixed	HIGH 8.1	Network	—	2026-09-29	140.17.0
CVE-2026-92240 Fixed CRITICAL 9.1 Network Fixed in: 140.16.0 2026-09-15	Fixed	CRITICAL 9.1	Network	—	2026-09-15	140.16.0
CVE-2026-92239 Fixed HIGH 8.1 Network Fixed in: 140.16.0 2026-09-15	Fixed	HIGH 8.1	Network	—	2026-09-15	140.16.0
CVE-2026-92238 Fixed CRITICAL 9.8 Network Fixed in: 140.16.0 2026-09-15	Fixed	CRITICAL 9.8	Network	—	2026-09-15	140.16.0
CVE-2026-92079 Fixed CRITICAL 9.1 Network Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.1	Network	—	2026-09-15	153.3.0
CVE-2026-92078 Fixed MEDIUM 6.5 Network Fixed in: 153.3.0 2026-09-15	Fixed	MEDIUM 6.5	Network	—	2026-09-15	153.3.0
CVE-2026-92077 Fixed MEDIUM 6.5 Network Fixed in: 153.3.0 2026-09-15	Fixed	MEDIUM 6.5	Network	—	2026-09-15	153.3.0
CVE-2026-92076 Fixed HIGH 8.8 Local Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Local	—	2026-09-15	153.3.0
CVE-2026-92075 Fixed CRITICAL 9.1 Network Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.1	Network	—	2026-09-15	153.3.0
CVE-2026-92074 Fixed HIGH 8.8 Local Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Local	—	2026-09-15	153.3.0
CVE-2026-92073 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92072 Fixed HIGH 8.0 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.0	Network	—	2026-09-15	153.3.0
CVE-2026-92071 Fixed CRITICAL 9.6 Network Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.6	Network	—	2026-09-15	153.3.0
CVE-2026-92070 Fixed MEDIUM 4.3 Network Fixed in: 153.3.0 2026-09-15	Fixed	MEDIUM 4.3	Network	—	2026-09-15	153.3.0
CVE-2026-92069 Fixed MEDIUM 5.4 Network Fixed in: 153.3.0 2026-09-15	Fixed	MEDIUM 5.4	Network	—	2026-09-15	153.3.0
CVE-2026-92068 Fixed MEDIUM 5.4 Network Fixed in: 153.3.0 2026-09-15	Fixed	MEDIUM 5.4	Network	—	2026-09-15	153.3.0
CVE-2026-92067 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92066 Fixed CRITICAL 9.8 Network Fixed in: 156.0 2026-09-15	Fixed	CRITICAL 9.8	Network	—	2026-09-15	156.0
CVE-2026-92065 Fixed HIGH 8.8 Local Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Local	—	2026-09-15	153.3.0
CVE-2026-92064 Fixed HIGH 8.8 Local Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Local	—	2026-09-15	153.3.0
CVE-2026-92063 Fixed MEDIUM 6.5 Network Fixed in: 156.0 2026-09-15	Fixed	MEDIUM 6.5	Network	—	2026-09-15	156.0
CVE-2026-92062 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92061 Fixed CRITICAL 9.8 Network Fixed in: 156.0 2026-09-15	Fixed	CRITICAL 9.8	Network	—	2026-09-15	156.0
CVE-2026-92060 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92059 Fixed CRITICAL 9.3 Local Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.3	Local	—	2026-09-15	153.3.0
CVE-2026-92058 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92057 Fixed CRITICAL 9.1 Network Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.1	Network	—	2026-09-15	153.3.0
CVE-2026-92056 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92055 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92054 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92053 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92052 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92051 Fixed CRITICAL 9.1 Network Fixed in: 156.0 2026-09-15	Fixed	CRITICAL 9.1	Network	—	2026-09-15	156.0
CVE-2026-92050 Fixed CRITICAL 9.1 Network Fixed in: 156.0 2026-09-15	Fixed	CRITICAL 9.1	Network	—	2026-09-15	156.0
CVE-2026-92049 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92048 Fixed CRITICAL 9.0 Network Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.0	Network	—	2026-09-15	153.3.0
CVE-2026-92047 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92046 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92045 Fixed CRITICAL 9.6 Network Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.6	Network	—	2026-09-15	153.3.0
CVE-2026-92044 Fixed HIGH 7.5 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 7.5	Network	—	2026-09-15	153.3.0
CVE-2026-92043 Fixed HIGH 8.8 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 8.8	Network	—	2026-09-15	153.3.0
CVE-2026-92042 Fixed HIGH 7.5 Network Fixed in: 153.3.0 2026-09-15	Fixed	HIGH 7.5	Network	—	2026-09-15	153.3.0
CVE-2026-92041 Fixed CRITICAL 9.1 Network Fixed in: 153.3.0 2026-09-15	Fixed	CRITICAL 9.1	Network	—	2026-09-15	153.3.0

100

Security Score

Excellent

Cumulative exposure

Low

CVE trend — 12 months 596 over the period

Context

Description

Thunderbird is a free email application that is easy to set up and customize - and it's loaded with great features!

Technical details

Publisher: Mozilla
Distribution channel: winget
Identifier: winget:Mozilla.Thunderbird

Other apps by this publisher

Apps published by Mozilla

4 apps tracked · 1 with an open CVE

Mozilla Firefox

winget:Mozilla.Firefox

77 open Security 50

Firefox

org.mozilla.firefox

No open vuln. Security 100

Firefox Focus

org.mozilla.focus

No known vulnerability

FAQ

FAQ: Mozilla Thunderbird

Does Mozilla Thunderbird have known security vulnerabilities?

Mozilla Thunderbird (winget:Mozilla.Thunderbird) on Windows has 2131 CVE referenced in NVD, 0 still open on the current version and 0 listed in the CISA KEV catalog. Absence of a CVE is not a security guarantee.

Is the current version of Mozilla Thunderbird affected by any open CVE?

Version 158.0 of Mozilla Thunderbird on Windows has no open CVE referenced in NVD. Absence of a CVE is not a security guarantee.

Is Mozilla Thunderbird affected by an actively exploited vulnerability (CISA KEV)?

No CVE affecting Mozilla Thunderbird (winget:Mozilla.Thunderbird) is currently in the CISA KEV catalog.

What is the latest known version of Mozilla Thunderbird?

The most recent version of Mozilla Thunderbird (winget:Mozilla.Thunderbird) tracked by Appaloosa Scout is 158.0, published by Mozilla.

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