CVE-2023-0430

Description

Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to 102.7.0 were affected by this bug. This vulnerability affects Thunderbird < 102.7.1.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2023-04/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1769000 vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2023-0430?
CVE-2023-0430 has been scored as a medium severity vulnerability.
How to fix CVE-2023-0430?
To fix CVE-2023-0430, 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-2023-0430 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-0430 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-2023-0430?
CVE-2023-0430 affects Mozilla Thunderbird.
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