When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5.

Related CVEs

CVE-2020-6795

Key Information

GHSA ID

GHSA-4whv-ch98-q6fp

Published

May 24, 2022 5:10 PM

Last Modified

May 24, 2022 5:10 PM

CVSS Score

5.0 /10

Primary Ecosystem

Unknown

Primary Package

Unknown

GitHub Reviewed

✗ No

Dataset

Last updated: November 26, 2025 6:30 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.