Web Reference: Feb 18, 2025 · The Log4j vulnerability, also called Log4Shell, is a software vulnerability found in the Apache Log4j logging framework. It is a zero-day, remote code execution (RCE) vulnerability that allows attackers to run malicious code and control systems running unpatched versions of Log4j. What is the Log4j vulnerability? The Log4j vulnerability, also known as Log4Shell, is a critical vulnerability discovered in the Apache Log4j logging library in November 2021. Log4Shell essentially grants hackers total control of devices running unpatched versions of Log4j. Log4Shell is a software vulnerability in Apache Log4j 2, a popular Java library for logging error messages in applications. The vulnerability, published as CVE-2021-44228, enables a remote attacker to take control of a device on the internet if the device is running certain versions of Log4j 2. Apache issued a patch for CVE-2021-44228, version 2.15...
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