CVE-2019-17571NVD

Vulnerability Summary

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.

Severity Level

CRITICAL(9.8)

Published Date

Dec 20, 2019

Last Modified

May 28, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

69.06%Probability

Root Weakness (CWE)

CWE-502: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v3.1 Base Metrics — Score 9.8 (CRITICAL)

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

Affected & Patched Versions

Affected Versions

Apache Log4j <= 1.2.17
Debian Debian Linux
Canonical Ubuntu Linux
Opensuse Leap
Netapp Oncommand System Manager >= 3.0 and <= 3.1.3
Netapp Oncommand Workflow Automation
Oracle Application Testing Suite
Oracle Communications Network Integrity >= 7.3.2 and <= 7.3.6
Oracle Endeca Information Discovery Studio
Oracle Financial Services Lending And Leasing >= 14.1.0 and <= 14.8.0
Oracle Financial Services Lending And Leasing
Oracle Mysql Enterprise Monitor <= 8.0.29
Oracle Primavera Gateway >= 16.2 and <= 16.2.11
Oracle Primavera Gateway >= 17.12.0 and <= 17.12.7
Oracle Rapid Planning
Oracle Retail Extract Transform And Load
Oracle Retail Service Backbone
Oracle Weblogic Server
Apache Bookkeeper < 4.14.3

Patched Versions

Apache Bookkeeper 4.14.3

🎁7-Day Free Trial — Try Pro or Team, no card required.

📧Email Delivery — Threat intel straight to your inbox.

♾️Unlimited Vendors — Track your entire stack.

🚨All New CVEs — Be the first to know.

📈EPSS Spike Alerts — Catch rising risk before it peaks.

🎯Custom EPSS/CVSS — Filter noise, focus on risk.

🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.

🐙GitHub Issues — Auto-tracked, no duplicates.

📬Weekly Digest — One clean summary, not inbox spam.

🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).

💬Webhooks — Slack & Teams integration.

🔀Smart Routing — Critical alerts to one channel, rest to another.

🚫Ad-Free — Uninterrupted experience.