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.
Published 2023-12-19 14:15:07
Updated 2023-12-29 13:15:08
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2023-50761

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 17 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2023-50761

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
4.3
MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
2.8
1.4
NIST

References for CVE-2023-50761

Products affected by CVE-2023-50761

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