How can local systems eliminate vulnerabilities?

The most effective and direct method for eliminating known vulnerabilities on local systems is through a robust patch management program. Vendors release patches specifically to correct security flaws and other bugs in their software. Applying these patches removes the vulnerable code from the system, thereby eliminating the weakness. A continuous and effective patching strategy ensures that systems are protected against newly discovered vulnerabilities as soon as fixes become available, forming a foundational pillar of cybersecurity hygiene and risk reduction.

B. Creating preventative memory-corruption techniques is a mitigation strategy that makes exploits harder to execute but does not eliminate the underlying vulnerability in the code itself.
C. Performing an attack on local systems is a method for discovering or identifying vulnerabilities (e.g., penetration testing), not for eliminating them.
D. Testing and deploying patches on a focused set of systems is only one step in a complete patch management process; it does not eliminate vulnerabilities across all systems.

1. National Institute of Standards and Technology (NIST) Special Publication 800-40 Revision 3. Guide to Enterprise Patch Management Technologies.

Section 2.1

"The Patch Management Process

" states

"Patch management is the process for identifying

acquiring

installing

and verifying patches for products and systems. Patches correct security and functionality problems in software and firmware." This directly supports that patching is the process to correct (eliminate) security problems (vulnerabilities).

2. Palo Alto Networks. PAN-OS® Administrator's Guide

Version 10.2.

Section: "Best Practices for Content Updates

" emphasizes the importance of timely updates. It states

"To ensure that the firewall protects your network from the latest threats

you must keep the content on your firewall up-to-date." This aligns with the principle of continuous patching to eliminate threats posed by vulnerabilities.

3. Palo Alto Networks. Cortex XDR™ Prevention Concepts Guide.

The guide describes various exploit protection modules. For example

it details how techniques targeting memory corruption (supporting why option B is incorrect) work to "block the exploit technique" rather than fixing the software flaw. This illustrates the difference between mitigation and elimination.