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CVE-2019-17571

Published: Dec 20, 2019Updated: May 28, 2026 Sources: CVE List NVD GHSA BDUCWE-502
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
69.1%
Top 0.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions up to 1.2 up to 1.2.17.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-502

Affected Products

Log4jApache Software Foundation
LibraryLibrary
OSS Libraries / generic-library
log4j:log4jMavenOSS Libraries
org.zenframework.z8.dependencies.commons:log4j-1.2.17MavenOSS Libraries
WebLogic ServerOracle Corp.
On-prem
Databases / cache-message-queue
SUSE Linux Enterprise Server for SAP ApplicationsNovell Inc.
On-premOS
Operating Systems / linux-distro
apache software foundationoss-projectUSWeb & CMS Pluginsaka apache foundation
mavenpackage-ecosystemOSS Libraries
oracle corp.commercialUSDatabasesaka oracle
novell inc.commercialUSOperating Systems
and 29 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://lists.apache.org/thread.html/8ab32b4c9f1826f20add7c40be08909de9f58a89dc1de9c09953f5ac%40%3Cissues.activemq.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/44491fb9cc19acc901f7cff34acb7376619f15638439416e3e14761c%40%3Cdev.tika.apache.org%3E
lists.apache.org
https://lists.apache.org/thread.html/277b4b5c2b0e06a825ccec565fa65bd671f35a4d58e3e2ec5d0618e1%40%3Cdev.tika.apache.org%3E
lists.apache.org
and 219 more references View all →

Timeline

Published
Dec 20, 2019
Last Updated
May 28, 2026

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