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What Is a Firewall and Do you Need One?

Adam Levin

A firewall is a network security device or program designed to prevent unauthorized and malicious internet traffic from entering a private network or device. Firewalls filter incoming network traffic at a computer’s entry points, or ports, where information is exchanged between the computer network and external devices. Probably not.

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CVE-2024-3400 (CVSS 10): Critical 0-Day Flaw in Palo Alto Networks Firewall Software Exploited in the Wild

Penetration Testing

Palo Alto Networks has disclosed a severe zero-day vulnerability (CVE-2024-3400) affecting its market-leading firewall software, PAN-OS. This vulnerability carries a CVSS score of 10.0, indicating its critical severity.

Firewall 111
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Palo Alto Networks fixed multiple DoS bugs in its firewalls

Security Affairs

Palo Alto Networks fixed several vulnerabilities in its PAN-OS operating system, including 3 issues that can trigger a DoS condition on its firewalls. Repeated attacks can eventually trigger a DoS condition by forcing the firewall into maintenance mode, requiring manual intervention to restore online functionality.

Firewall 128
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How to Block a Program in a Firewall (Windows & Mac)

eSecurity Planet

Blocking a program in a firewall is a security measure that protects systems from unwanted access. Learn how to block a program in a firewall by exploring when to allow or block programs, methods to permanently or temporarily block in Windows or MacOS, and the common troubleshooting tips. Follow the steps below.

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New Security Vulnerabilities Uncovered in pfSense Firewall Software - Patch Now

The Hacker News

Multiple security vulnerabilities have been discovered in the open-source Netgate pfSense firewall solution called pfSense that could be chained by an attacker to execute arbitrary commands on susceptible appliances.

Firewall 130
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Network Firewalls Comprehensive Guide For Non-Tech-Savvy People

SecureBlitz

This post will show you all you need to know about network firewalls. But before we proceed, let's answer the fundamental question for the novice – what is a network firewall? What Is A Network Firewall?

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How to Perform a Firewall Audit in 11 Steps (+Free Checklist)

eSecurity Planet

A firewall audit is a procedure for reviewing and reconfiguring firewalls as needed so they still suit your organization’s security goals. Auditing your firewall is one of the most important steps to ensuring it’s still equipped to protect the perimeter of your business’ network.

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