Tag: buffer overflow

20 articles

Network operations room with a cracked screen symbolizing exploited vulnerability.

Palo Alto Networks Exploits Critical PAN-OS Flaw in Limited Attacks

Palo Alto Networks has patched a critical flaw in its PAN-OS software, CVE-2026-0300, which allowed hackers to execute malicious code with root privileges - and the company says it's already been exploited in targeted attacks. The vulnerability, a buffer overflow in the User-ID Authentication Portal service, could be triggered by sending specially crafted packets.

Analyst 207May 14, 2026

Network device in a brightly-lit tech environment with blurred background infrastructure.

Palo Alto Networks Discloses Active Exploitation of PAN-OS Flaw Enabling Espionage

Palo Alto Networks has uncovered active exploitation of a high-severity flaw in PAN-OS software, allowing attackers to execute arbitrary code with root privileges and inject shellcode into vulnerable systems. This critical vulnerability, tracked as CVE-2026-0300, enables unauthenticated remote code execution, putting affected appliances at risk of espionage.

Analyst 207May 7, 2026

Network security device on a rack in a clean, bright environment.

Palo Alto Networks Discloses Zero-Day Flaw in PAN-OS Software

Palo Alto Networks has issued a warning about a zero-day flaw in its PAN-OS software, tracked as CVE-2026-0300, which allows unauthenticated remote code execution with root privileges. This buffer overflow vulnerability in the User-ID Authentication Portal poses a high risk to PA-Series and VM-Series firewalls.

Analyst 207May 7, 2026

Network equipment and cables surround a central firewall device in a data center.

Palo Alto Firewalls Targeted in Active Exploitation

Thousands of Palo Alto firewalls are at risk due to an actively exploited vulnerability, CVE-2026-0300, that allows hackers to execute arbitrary code with root privileges. This alarming flaw affects 5,821 internet-exposed VM-Series firewalls, leaving them open to potential cyber attacks.

Analyst 207May 6, 2026

Brightly-lit network operations environment with a firewall on a rack amidst surrounding equipment.

Palo Alto Networks Firewalls Targeted in Zero-Day Exploits

Palo Alto Networks firewalls are under attack by zero-day exploits targeting a vulnerability in the User-ID Authentication Portal, allowing hackers to execute malicious code with root privileges. This buffer overflow flaw, tracked as CVE-2026-0300, poses a significant risk to organizations with Internet-exposed firewalls.

Analyst 207May 6, 2026

Network equipment and firewall device on a rack with cables, under ordinary lighting.

Palo Alto Networks Flaw Exploited for Remote Code Execution

A critical vulnerability in Palo Alto Networks' PAN-OS software has been exploited, allowing hackers to execute malicious code with root privileges on firewalls - and all it takes is a few specially crafted packets. This buffer overflow flaw, tracked as CVE-2026-0300, puts PA-Series and VM-Series firewalls at risk of remote code execution attacks.

Analyst 207May 6, 2026

Magnifying glass hovers over cracked screen with eerie glow, set against dark cityscape at dusk.

Google AI Stunningly Exposes 5 Critical Safari WebKit Flaws

Googles AI, Big Sleep, exposed five critical security flaws in WebKit — including a buffer‑overflow that could trigger crashes or memory corruption. It’s a stark reminder that AI speeds up vulnerability discovery, shortening the window defenders have to patch Safari’s engine before attackers catch up.

Analyst 207Nov 4, 2025