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VULNERABILITIES

CVE-2020-9488 Details

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

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA: CISA-ADPCVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://issues.apache.org/jira/browse/LOG4J2-2819 CVEIssue TrackingMitigationPatchVendor Advisory
https://lists.apache.org/thread.html/r0a2699f724156a558afd1abb6c044fb9132caa66dce861b82699722a%40%3Cjira.kafka.apache.org%3E CVE
https://lists.apache.org/thread.html/r0df3d7a5acb98c57e64ab9266aa21eeee1d9b399addb96f9cf1cbe05%40%3Cdev.zookeeper.apache.org%3E CVE
https://lists.apache.org/thread.html/r1fc73f0e16ec2fa249d3ad39a5194afb9cc5afb4c023dc0bab5a5881%40%3Cissues.hive.apache.org%3E CVE
https://lists.apache.org/thread.html/r22a56beb76dd8cf18e24fda9072f1e05990f49d6439662d3782a392f%40%3Cissues.hive.apache.org%3E CVE

see all 98 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-295Improper Certificate Validation[email protected]
CWE-295Improper Certificate ValidationCISA-ADP

Affected Products

ProductVersions

Change History

46 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-9488
NVD Published Date:
Apr 27, 2020
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2020-9488 Details - Not Deferred