AUGUST 4, 2026
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Case File

CVE-2023-50761

MEDIUM · CVSS 4.3 EPSS 0.63%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-12-19 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. See the original NVD description below for full technical details.

CVE
CVE-2023-50761
Severity
MEDIUM
CVSS
4.3
EPSS
0.63%

Original NVD Description

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.

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