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Thunderbird

thunderbird

Vendor: Mozilla • 1,867 CVEs

CVEs (1,867)

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1Mozilla
1Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
The values of the mail.allowed_attachment_hostnames advanced config setting were used in a regular expression without escaping. For some possible valid hostnames, this could allow certain unintended hostnames to also mat...Show more
The values of the mail.allowed_attachment_hostnames advanced config setting were used in a regular expression without escaping. For some possible valid hostnames, this could allow certain unintended hostnames to also match and serve remote attachments. This vulnerability was fixed in Thunderbird 155 and Thunderbird 153.2.Show less
1Mozilla
1Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thun...Show more
A malicious IMAP server can trigger use-after-free and heap-memory disclosure by sending a crafted ID response. Heap contents can ultimately be persisted to prefs.js. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.Show less
1Mozilla
1Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
A maliciously constructed mail header could lead to a one byte read past the end of a buffer. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
1Mozilla
1Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.1 CRITICAL· v3
N/A· v2
Triggering an error condition in certain MIME bodies would cause uninitialized memory to be used. This vulnerability was fixed in Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.
1Mozilla
1Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Malicious calendar invitations could use file URI attachments to launch local or network-hosted executables on Windows, bypassing Thunderbird's normal executable attachment protections. With the new invitation display en...Show more
Malicious calendar invitations could use file URI attachments to launch local or network-hosted executables on Windows, bypassing Thunderbird's normal executable attachment protections. With the new invitation display enabled, the attachment could also appear under a misleading filename. This vulnerability was fixed in Thunderbird 154 and Thunderbird 153.2.Show less
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with eno...Show more
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.Show less
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these...Show more
Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.Show less
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with eno...Show more
Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.Show less
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited...Show more
Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 155 and Thunderbird 155.Show less
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
6.5 MEDIUM· v3
N/A· v2
Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
4.3 MEDIUM· v3
N/A· v2
Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
6.1 MEDIUM· v3
N/A· v2
Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Other issue in the Profile Backup component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Site isolation issue in the DOM: Push Subscriptions component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the Networking: HTTP component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
8.8 HIGH· v3
N/A· v2
Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thun...Show more
Privilege escalation due to invalid pointer in the Graphics component. This vulnerability was fixed in Firefox 155, Firefox ESR 115.40, Firefox ESR 140.15, Firefox ESR 153.2, Thunderbird 155, Thunderbird 140.15, and Thunderbird 153.2.Show less
1Mozilla
2Firefox
Thunderbird
Sep 3, 2026
Sep 1, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Information disclosure in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, Thunderbird 155, and Thunderbird 153.2.