VULNERABILITY INTELLIGENCE
CVE-2019-17571
CVSS score9.8 CRITICAL
EPSS probability69.98%
CISA KEVNot currently listed
Published2019-12-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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.
Weakness classification
- security@apache.org: CWE-502
- nvd@nist.gov: CWE-502
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-502
Primary references
- security@apache.org — Mailing List, Third Party Advisory
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org
- security@apache.org — Mailing List, Vendor Advisory
- security@apache.org
- security@apache.org
- security@apache.org