Category: GBHackers Security | #1 Globally Trusted Cyber Security News Platform

Cisco Nexus Switch Vulnerability Allows Attackers to Cause DoS

Cisco Systems has disclosed a high-severity vulnerability (CVE-2025-20111) in its Nexus 3000 and 9000 Series Switches operating in standalone NX-OS mode. The vulnerability enables unauthenticated attackers to trigger denial of service (DoS) conditions through crafted Ethernet frames. Rated 7.4 on…

Poseidon Mac Malware Hiding Within PKG Files to Evade Detections

A recent discovery by cybersecurity researchers has revealed that the Poseidon malware, a macOS-targeting trojan, is leveraging PKG files with preinstall scripts to infiltrate systems. This malware, weighing only 207 bytes, is currently undetected by VirusTotal and represents a significant…

MITRE Releases OCCULT Framework to Address AI Security Challenges

MITRE has unveiled the Offensive Cyber Capability Unified LLM Testing (OCCULT) framework, a groundbreaking methodology designed to evaluate risks posed by large language models (LLMs) in autonomous cyberattacks. Announced on February 26, 2025, the initiative responds to growing concerns that…

GRUB2 Flaws Expose Millions of Linux Devices to Exploitation

A critical set of 20 security vulnerabilities in GRUB2, the widely used bootloader for Linux systems, has been revealed, exposing millions of devices to potential secure boot bypass and remote code execution attacks. Discovered during a proactive hardening initiative, these…

US Employee Background Check Firm Hacked, 3 Million Records Exposed

DISA Global Solutions, a Houston-based provider of employee background checks and workplace safety services, disclosed a significant cybersecurity incident exposing the personal information of over 3.3 million individuals, including 15,198 Maine residents. The breach occurred on February 9, 2024, but was…

2,850+ Ivanti Connect Secure Devices Exposed to Potential Cyberattacks

A sweeping cybersecurity alert has emerged as researchers identify 2,850+ unpatched Ivanti Connect Secure devices worldwide, leaving organizations vulnerable to exploitation through the critical flaw designated CVE-2025-22467. The findings, published by cybersecurity watchdog Shadowserver Foundation, reveal systemic risks to virtual private network (VPN)…