CVE-2021-43529
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-43529
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43529.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-43529
- Downstream
- Related
- Published
- 2023-02-16T22:15:10Z
- Modified
- 2025-08-09T19:01:28Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures.
- References