VULNERABILITY INTELLIGENCE
CVE-2020-9488
CVSS score3.7 LOW
EPSS probability8.22%
CISA KEVNot currently listed
Published2020-04-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Description
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed in Apache Log4j 2.12.3 and 2.13.1
Weakness classification
- CWE-295: Improper Certificate Validation