Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2021-23991

If a Thunderbird user has previously imported Alice's OpenPGP key, and Alice has extended the validity period of her key, but Alice's updated key has not yet been imported, an attacker may send an email containing a crafted version of Alice's key with an invalid subkey, Thunderbird might subsequently attempt to use the invalid subkey, and will fail to send encrypted email to Alice. This vulnerability affects Thunderbird < 78.9.1.

  • Published: Jun 24, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-23991
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.8
  • AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

CVSS v2:

  • Severity: Low
  • Score: 4
  • AV:N/AC:H/Au:N/C:P/I:P/A:N

No CWE or OWASP classifications available.