Attackers are actively exploiting a critical vulnerability in Apache Log4j, a logging library that’s used in potentially millions of Java-based applications, including web-based ones.

There are 17,000 unpatched Log4j packages in the Maven Central ecosystem, leaving massive supply-chain risk on the table from Log4Shell exploits.

A critical flaw in a popularly used Java library is being exploited by malicious actors to deliver malware, while security researchers are scanning for vulnerable servers.

Here’s what to know about the exploit and log4j. Log4j is an open-source tool used by Java programs for logging, or creating a record of everything an application has done.

Exploits of the Log4j vulnerability can lead to loss of data on server systems and denial-of-service attacks.

Critical flaw in the H2 open-source Java SQL database are similar to the Log4J vulnerability, but do not pose a widespread threat.

Log4j is patched, but the exploits are just getting started As updates to affected software slowly roll out, other quicker fixes are a crucial stopgap ...

The vulnerability (CVE-2021-44228) is in the widely used Java logging library Apache Log4j and, if successfully exploited, the flaw allows attackers to remotely execute code and gain access to ...

What Kind of Vulnerability Affects Log4j in Java? The vulnerability was in a commonly used remote logging tool called Log4j, which can be targeted by remote code execution. The tool, managed by the ...