### Comment:
How can malware be used to exploit vulnerabilities in a computer system?

### REPLY:
One way to exploit vulnerabilities in a computer system is by using a technique called "buffer overflow." By sending excessive amounts of data to a vulnerable program, an attacker can overwrite areas of memory and execute malicious code. Another method is to exploit unpatched software, as developers often release updates to fix security flaws. By targeting known vulnerabilities, hackers can gain unauthorized access to systems and install malware.