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# Log4J Vulnerability
- URL: https://www.narendravardi.com/log4j-vulnerability/
- Published: 2022-05-04T07:25:19.000Z
- Updated: 2022-09-26T06:45:33.000Z
- Author: Narendra Vardi
- Tags: Memes, 2022

***Context:*** Log4Shell was a zero-day vulnerability in Log4j, a popular Java logging framework, involving arbitrary code execution. The vulnerability has existed unnoticed since 2013 and was privately disclosed to the Apache Software Foundation, of which Log4j is a project, by Chen Zhaojun of Alibaba Cloud's security team on 24 November 2021, and was publicly disclosed on 9 December 2021\. 

Apache gave Log4Shell a **CVSS severity rating of 10, the highest available score.** The exploit is simple to execute and is estimated to affect hundreds of millions of devices.

More at [Log4Shell Wikipedia Page](https://en.wikipedia.org/wiki/Log4Shell?ref=narendravardi.com).