VDB
DEBIAN-CVE-2021-23991
DEBIAN-CVE-2021-23991
PUBLISHED
CVSS 6.800000190734863 MEDIUM
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.
Risk Scores
CVSS 3.1
6.800000190734863
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | thunderbird | 0 |
| Debian:12 | thunderbird | 0 |
| Debian:13 | thunderbird | 0 |
Timeline
- Jun 24, 2021 CVE Published
- Oct 23, 2026 CVE Updated