Mozilla Thunderbird < 147.0

The version of Thunderbird installed on the remote Windows host is prior to 147.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-04 advisory. - Memory safety bugs present in Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory...

CVE-2026-0880

Sandbox escape due to integer overflow in the Graphics component. This vulnerability affects Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0887 Clickjacking issue, information disclosure in the PDF Viewer component

Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0879

Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

Mozilla Firefox and Mozilla Firefox ESR security vulnerabilities

Mozilla Firefox is an open source web browser from the Mozilla Foundation.Mozilla Firefox ESR is an extended support version of Firefox web browser from the Mozilla Foundation.Mozilla Thunderbird is a suite of e-mail client software from the Mozilla Foundation that is separate from the Mozilla...

Mozilla Firefox and Mozilla Firefox ESR security vulnerabilities

Mozilla Firefox is an open source web browser from the Mozilla Foundation.Mozilla Firefox ESR is an extended support version of Firefox web browser from the Mozilla Foundation.Mozilla Thunderbird is a suite of e-mail client software from the Mozilla Foundation that is separate from the Mozilla...