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CVE-2025-68161

Apache Log4j Core: Missing TLS hostname verification in Socket appender

Published: Dec 18, 2025Updated: Jan 20, 2026 Sources: CVE List NVD GHSA BDUCWE-297
NVD MITRE
4.8CVSSMEDIUM
EPSS Score
0.7%
Top 50.2%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

Apache Log4j does not verify the TLS hostname in its Socket Appender

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-297CWE-295

Affected Products

org.apache.logging.log4j:log4j-coreMavenOSS Libraries
log4japache
LibraryLibrary
OSS Libraries / generic-library
Apache Log4j CoreApache Software Foundation
LibraryLibrary
OSS Libraries / generic-library
mavenpackage-ecosystemOSS Libraries
apacheoss-projectUSWeb & CMS Pluginsaka apache http server, apache httpd
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2025-68161
nvd.nist.gov
https://github.com/apache/logging-log4j2/pull/4002
github.com
https://github.com/apache/logging-log4j2/commit/3b93748497e1adbbd027fda8a5e7268ec5d0d578
github.com
and 10 more references View all →

Timeline

Published
Dec 18, 2025
Last Updated
Jan 20, 2026

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