Vulnerability in Mozilla Thunderbird
CVE-2023-50761
The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.
EPSS: 0.006 (46.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.
Affected products
- Mozilla Thunderbird — versions unspecified
- Debian Debian_linux — versions 11.0, 12.0
References
- security@mozilla.org (Permissions Required, Issue Tracking)
- security@mozilla.org (Vendor Advisory)
- security@mozilla.org (Third Party Advisory)
- security@mozilla.org
Frequently asked questions
- What is CVE-2023-50761?
- CVE-2023-50761 is a medium-severity vulnerability in Mozilla Thunderbird. CVSS score: 4.3/10. Published 2023-12-19.
- How severe is CVE-2023-50761?
- Medium severity. CVSS v3 base score is 4.3 out of 10.