CVE-2022-2226
Mozilla: An email with a mismatching OpenPGP signature date was accepted as valid
Severity
ModerateRed Hat Product Security
CVSS 3.0
Review impact separately from score.
Published · June 28, 2022
Updated · November 21, 2025
Description
A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this issue of when an OpenPGP digital signature includes information about the date when the signature was created. When displaying an email that contains a digital signature, it will show the email's date. If the dates were different, Thunderbird didn't report the email as having an invalid signature. If an attacker performs a replay attack, in which an old email with old contents is present at a later time, it could lead the victim to believe that the statements in the email are current. Fixed versions of Thunderbird will require that the signature's date roughly matches the displayed date of the email.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.0 · 6.1CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE-357 · Insufficient UI Warning of Dangerous Operations