TH
Product
Thunderbird
by Mozilla · last CVE Sep 30, 2026
On CISA KEVExploited in the wildRansomware-linked
2,073
CVEs
14
On KEV
10.0
Max CVSS
77
New 30D
Severity mix
Critical 379High 120Medium 1Low 0
Watch

Add Thunderbird to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2019-11708
In wildKEV
10.0
56%
Jul 23
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
Affected: before 60.7.2
CVE-2024-9680
RansomwareIn wildKEV
9.8
23%
Oct 9
Mozilla Firefox Use-After-Free Vulnerability
Affected: before 131.0.1; before 128.3.1; before 115.16.0
CVE-2010-3765
In wildKEV
9.8
83%
Oct 27
Mozilla Multiple Products Remote Code Execution Vulnerability
Affected: 3.0.1; 3.0.2; 3.0.3; 3.0.4; 3.0.5; 3.0.6; +8 more
CVE-2022-26486
In wildKEV
9.6
2%
Dec 22
Mozilla Firefox Use-After-Free Vulnerability
Affected: before 91.6.2
CVE-2023-5217
In wildKEV
8.8
49%
Sep 28
Google Chromium libvpx Heap Buffer Overflow Vulnerability
Affected: before 115.3.1
CVE-2023-4863
In wildKEV
8.8
100%
Sep 12
Google Chromium WebP Heap-Based Buffer Overflow Vulnerability
Affected: before 102.15.1; 115.0 before 115.2.2
CVE-2022-26485
In wildKEV
8.8
14%
Dec 22
Mozilla Firefox Use-After-Free Vulnerability
Affected: before 91.6.2
CVE-2019-17026
In wildKEV
8.8
46%
Mar 2
Mozilla Firefox And Thunderbird Type Confusion Vulnerability
Affected: before 68.4.1
CVE-2019-11707
In wildKEV
8.8
38%
Jul 23
Mozilla Firefox and Thunderbird Type Confusion Vulnerability
Affected: before 60.7.2
CVE-2013-1690
In wildKEV
8.8
69%
Jun 26
Mozilla Firefox and Thunderbird Denial-of-Service Vulnerability
Affected: before 17.0.7
CVE-2020-6819
In wildKEV
8.1
3%
Apr 24
Mozilla Firefox And Thunderbird Use-After-Free Vulnerability
Affected: before 68.7.0
CVE-2020-6820
In wildKEV
8.1
7%
Apr 24
Mozilla Firefox And Thunderbird Use-After-Free Vulnerability
Affected: before 68.7.0
CVE-2016-9079
In wildKEV
7.5
87%
Jun 11
Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability
Affected: before 45.5.1
CVE-2013-1675
In wildKEV
6.5
7%
May 16
Mozilla Firefox Information Disclosure Vulnerability
Affected: before 17.0.6
CVE-2026-75874
10.0
0%
Aug 18
Sandbox escape in the Remote Settings Client component
Affected: before 154.0
CVE-2026-16367
10.0
1%
Jul 21
Sandbox escape due to invalid pointer in the Disability Access APIs component
Affected: before 153.0
CVE-2026-4692
10.0
1%
Mar 24
Sandbox escape in the Responsive Design Mode component
Affected: before 140.9.0; before 149.0
CVE-2026-4689
10.0
1%
Mar 24
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component
Affected: before 140.9.0; before 149.0
CVE-2026-2778
10.0
1%
Feb 24
Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component
Affected: before 140.8.0; before 148.0
CVE-2026-2776
10.0
1%
Feb 24
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software
Affected: before 140.8.0; before 148.0
CVE-2026-2768
10.0
0%
Feb 24
Sandbox escape in the Storage: IndexedDB component
Affected: before 140.8.0; before 148.0
CVE-2026-2761
10.0
0%
Feb 24
Sandbox escape in the Graphics: WebRender component
Affected: before 140.8.0; before 148.0
CVE-2026-2760
10.0
0%
Feb 24
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component
Affected: before 140.8.0; before 148.0
CVE-2026-0881
10.0
0%
Jan 13
Sandbox escape in the Messaging System component
Affected: before 147.0
CVE-2021-4140
10.0
1%
Dec 22
It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox
Affected: before 91.5
CVE-2021-38503
10.0
4%
Dec 8
The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame
Affected: before 91.3
CVE-2018-18505
10.0
4%
Feb 5
An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC endpoints and server parents during IPC…
Affected: before 60.5
CVE-2026-100810
9.8
0%
Sep 29
Other issue in the DevTools component
Affected: before 157.0
CVE-2026-100788
9.8
0%
Sep 29
Invalid pointer in the JavaScript: WebAssembly component
Affected: before 140.17.0; 141.0 before 153.4.0; 154.0 before 157.0
CVE-2026-92238
9.8
1%
Sep 15
Ambiguous parsing of mail headers
Affected: before 140.16.0; 141.0 before 153.3.0; 154.0 before 156.0
CVE-2026-92066
9.8
1%
Sep 15
Sandbox escape in the Profile Backup component
Affected: before 156.0
CVE-2026-92061
9.8
1%
Sep 15
Incorrect boundary conditions in the Security: Process Sandboxing component
Affected: before 156.0
CVE-2026-92037
9.8
1%
Sep 15
Incorrect boundary conditions in the DOM: Animation component
Affected: before 156.0
CVE-2026-92036
9.8
1%
Sep 15
Incorrect boundary conditions in the Networking: HTTP component
Affected: before 156.0
CVE-2026-84637
9.8
1%
Sep 1
Calendar invitation attachments could launch local executables
Affected: before 153.2.0; 154.0 before 155.0
CVE-2026-84143
9.8
0%
Sep 1
Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15
Affected: before 140.15.0; 141.0 before 153.2.0; 154.0 before 155.0
CVE-2026-84142
9.8
1%
Sep 1
Internally found bugs fixed in Thunderbird 155
Affected: before 155.0
CVE-2026-84141
9.8
0%
Sep 1
Integer overflow in the Graphics: ImageLib component
Affected: before 153.2.0; 154.0 before 155.0
CVE-2026-84140
9.8
0%
Sep 1
Site isolation issue in the DOM: Navigation component
Affected: before 153.2.0; 154.0 before 155.0
CVE-2026-84134
9.8
1%
Sep 1
Other issue in the Profile Backup component
Affected: before 153.2.0; 154.0 before 155.0
CVE-2026-84133
9.8
0%
Sep 1
Site isolation issue in the DOM: Push Subscriptions component
Affected: before 153.2.0; 154.0 before 155.0
CVE-2026-84129
9.8
0%
Sep 1
Site isolation issue in the DOM: Navigation component
Affected: before 153.2.0; 154.0 before 155.0
CVE-2026-74989
9.8
1%
Aug 18
Internally found bugs fixed in Thunderbird 154
Affected: before 154.0
CVE-2026-74988
9.8
1%
Aug 18
Internally found bugs fixed in Thunderbird ESR 153.1 and Thunderbird 154
Affected: before 153.1.0; before 153.1.0
CVE-2026-74985
9.8
1%
Aug 18
Privilege escalation in the Enterprise Policies component
Affected: before 153.1.0
CVE-2026-74979
9.8
1%
Aug 18
Mitigation bypass in the Add-ons Manager component
Affected: before 153.1.0; before 154.0
CVE-2026-74990
9.8
1%
Aug 18
Internally found bugs fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbird 154
Affected: before 140.14.0; 141.0 before 153.1.0
CVE-2026-74987
9.8
1%
Aug 18
Internally found bugs fixed in Thunderbird ESR 140.14, Thunderbird ESR 153.1 and Thunderbird 154
Affected: before 140.14.0; 141.0 before 153.1.0
CVE-2026-74964
9.8
1%
Aug 18
Integer overflow in the Graphics component
Affected: before 140.14.0; 141.0 before 153.1.0
CVE-2026-74944
9.8
1%
Aug 18
Use-after-free in the DOM: Core & HTML component
Affected: before 140.14.0; 141.0 before 153.1.0
Page 1 of 10 · 500 total
12…10
The 500 most important CVEs for this product (exploited first, then by severity)