CVEvulnerability
CVE-2026-3889
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-03-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- Weaknesses
- CWE-451
Description
Spoofing issue in Thunderbird. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9.
Affected configurations
• mozilla thunderbird (< 140.9.0)
• mozilla thunderbird (< 149.0)
Related
Weakness · CWE (1)
- CWE-451 User Interface (UI) Misrepresentation of Critical Information weakness
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=2020723 Permissions Required
- https://www.mozilla.org/security/advisories/mfsa2026-23/ Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-24/ Vendor Advisory