CVE-2020-9488

LowCVSS 3.7/10Last modified Jun 17, 2026

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 3.1 3.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness enumeration

CWE-295

Affected software

No affected versions have been published.

Timeline

Published: Apr 27, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2020

CVE-2020-94895.5A carefully crafted or corrupt file may trigger a System.exit in Tika's OneNote Parser. Crafted or corrupted files can also cause out of mem CVE-2020-94907.5Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a CVE-2020-94917.5In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by pr CVE-2020-94928.8In Apache Hadoop 3.2.0 to 3.2.1, 3.0.0-alpha1 to 3.1.3, and 2.0.0-alpha to 2.10.0, WebHDFS client might send SPNEGO authorization header to CVE-2020-94939.8A deserialization flaw was found in Apache Chainsaw versions prior to 2.1.0 which could lead to malicious code execution.CVE-2020-94947.5Apache Traffic Server 6.0.0 to 6.2.3, 7.0.0 to 7.1.10, and 8.0.0 to 8.0.7 is vulnerable to certain types of HTTP/2 HEADERS frames that can c CVE-2020-94955.3Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the conne CVE-2020-94966.1XML-RPC request are vulnerable to unsafe deserialization and Cross-Site Scripting issues in Apache OFBiz 17.12.03 CVE-2020-94974.4Apache Guacamole 1.1.0 and older do not properly validate datareceived from RDP servers via static virtual channels. If a userconnects to a CVE-2020-94986.7Apache Guacamole 1.1.0 and older may mishandle pointers involved inprocessing data received via RDP static virtual channels. If a userconnec CVE-2020-94997.2Some Dahua products have buffer overflow vulnerabilities. After the successful login of the legal account, the attacker sends a specific DDN CVE-2020-95004.9Some products of Dahua have Denial of Service vulnerabilities. After the successful login of the legal account, the attacker sends a specifi