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Deserialization of Untrusted Data The advisory has been revoked - it doesn't affect any version of package log4j  (opens in a new tab)

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
89.79% (100th percentile)

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  • Snyk IDSNYK-RHEL10-LOG4J-9884704
  • published28 Apr 2025
  • disclosed2 Apr 2017
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Introduced: 2 Apr 2017

CVE-2017-5645  (opens in a new tab)
CWE-502  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream log4j package and not the log4j package as distributed by RHEL.

In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.

References