Medium (5.9) in matrixssl matrixssl. EPSS 0.5% chance of exploitation in the next 30 days.
MatrixSSL version 3.7.2 has an incorrect UTCTime date range validation in its X.509 certificate validation process resulting in some certificates have their expiration (beginning) year extended (delayed) by 100 years.
Severity
CVSS 3.0
5.9 medium
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
0.5% chance of exploitation in the next 30 days; higher than 41% of CVEs (scores of 2026-10-31)