Issued at: 2025-10-04
Updated at: 2025-10-10
Synopsis
Important: thunderbird security update
Description
Mozilla Thunderbird is a standalone mail and newsgroup client.
Security Fix(es):
* firefox: thunderbird: Large branch table could lead to truncated instruction (CVE-2025-8028)
* firefox: thunderbird: Memory safety bugs (CVE-2025-8035)
* firefox: thunderbird: Incorrect URL stripping in CSP reports (CVE-2025-8031)
* firefox: thunderbird: JavaScript engine only wrote partial return value to stack (CVE-2025-8027)
* firefox: thunderbird: Potential user-assisted code execution in ?Copy as cURL? command (CVE-2025-8030)
* firefox: Memory safety bugs (CVE-2025-8034)
* firefox: thunderbird: Incorrect JavaScript state machine for generators (CVE-2025-8033)
* firefox: thunderbird: XSLT documents could bypass CSP (CVE-2025-8032)
* firefox: thunderbird: javascript: URLs executed on object and embed tags (CVE-2025-8029)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.