vulnerability
MFSA2023-47 Thunderbird: Security Vulnerabilities fixed in Thunderbird 115.4.1 (CVE-2023-5721)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Oct 24, 2023 | Oct 25, 2023 | Mar 27, 2026 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Oct 24, 2023
Added
Oct 25, 2023
Modified
Mar 27, 2026
Description
It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an insufficient activation-delay. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.
Solution
mozilla-thunderbird-upgrade-115_4_1
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.