vulnerability
MFSA2025-78 Thunderbird: Security Vulnerabilities fixed in Thunderbird 140.3 (CVE-2025-10537)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:C) | Sep 16, 2025 | Sep 17, 2025 | Feb 2, 2026 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:C)
Published
Sep 16, 2025
Added
Sep 17, 2025
Modified
Feb 2, 2026
Description
Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
Solution
mozilla-thunderbird-upgrade-140_3
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