UpHeron
All vulnerabilities

Servers and applications

CVE-2020-9488

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

Severity
Low 3.7
Published
27 Apr 2020
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
2.3.2, 2.12.3, 2.13.2
Sources
NVD

Affected software

SoftwareAffected versions
Apache Log4jServers and applications · cpe:a:apache:log4j
  • From 2.0 before 2.3.2
  • From 2.4 before 2.12.3
  • From 2.13.0 before 2.13.2
Oracle WebLogic ServerServers and applications · cpe:a:oracle:weblogic_server
  • Version 10.3.6.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-9488
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-9488