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CVE-2021-40438, also nicknamed Log4Shell, is a remote code execution (RCE) vulnerability residing in versions 2.0-beta9 and 2.12.0-beta1 of the popular Java logging library Log4j. This vulnerability arises from a flaw in how Log4j handles messages containing specific patterns. An attacker can inject malicious code into a log message, which then gets executed by the vulnerable Log4j library on the target system.

To know more about this bug, read our blog

https://blogs.cappriciosec.com/cve/152/Log4Shell%20-%20A%20Critical%20Logging%20Library%20Vulnerability%20(CVE-2021-40438)

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