CVE-2023-50761

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.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.24%

Vendor Advisory mozilla.org

Affected: Mozilla Thunderbird

References

Link	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1865647	issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2023-55/	vendor advisory
https://www.debian.org/security/2023/dsa-5582	third party advisory
https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html

Frequently Asked Questions

What is the severity of CVE-2023-50761?: CVE-2023-50761 has been scored as a medium severity vulnerability.
How to fix CVE-2023-50761?: To fix CVE-2023-50761, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-50761 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-50761 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-50761?: CVE-2023-50761 affects Mozilla Thunderbird.

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