https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-04T10:03:21.157974+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2021-23991 CVE-2021-23991 2026-10-04T10:03:21.161144+00:00

Affected: Mozilla Thunderbird

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.