CVE-2021-23991
MEDIUM 6.8EPSS 1.0%
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.
- Affected
- Mozilla · Thunderbird
- CVSS v3.1 NVD
- 6.8 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - CVSS v2.0 NVD
- 4.0 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:N - EPSS
- 1.03% chance of exploitation in the next 30 days, 63rd percentile
- Published
- 2021-06-24
- Updated
- 2024-08-03