Ethical Hacking News
A critical zero-day vulnerability known as "RoguePlanet" has been discovered in Microsoft Defender, a leading security solution used by millions of users worldwide. The vulnerability grants attackers SYSTEM-level privileges, allowing them to execute malicious code with elevated access. Follow us for the latest updates and expert insights on how to protect your systems from this new threat.
Microsoft has acknowledged a critical zero-day vulnerability called "RoguePlanet" that affects Microsoft Defender. The vulnerability grants attackers SYSTEM-level privileges, allowing them to execute malicious code with elevated access. The exploit is a race condition and can be successful or unsuccessful depending on various factors. Microsoft is actively investigating the validity of these claims and working on a high-quality security update. Users are advised to apply the patch promptly to minimize the risk of exploitation by attackers.
Microsoft has officially acknowledged a critical zero-day vulnerability known as "RoguePlanet" that affects Microsoft Defender, a prominent security solution used by millions of users worldwide. The vulnerability, which was discovered and disclosed by a security researcher named Chaotic Eclipse (also known as Nightmare-Eclipse), poses a significant threat to the security of Windows-based systems.
According to Chaotic Eclipse, RoguePlanet is a privilege escalation flaw that grants attackers SYSTEM-level privileges, allowing them to execute malicious code with elevated access. The exploit is described as a race condition, meaning that it can be successful or unsuccessful depending on various factors, including the state of real-time protection and passive mode.
In an update shared recently, Chaotic Eclipse revealed that the Proof-of-Concept (PoC) for RoguePlanet works regardless of whether real-time protection is enabled or disabled. Moreover, the researcher mentioned that the exploit even appears to work in passive mode, although they were unable to test this scenario thoroughly.
Microsoft has confirmed that it is actively investigating the validity and potential applicability of these claims. The company stated that it is working diligently to provide a high-quality security update that addresses the RoguePlanet vulnerability.
It's worth noting that RoguePlanet is not the first Defender zero-day disclosed by Chaotic Eclipse, who has previously identified vulnerabilities in BlueHammer (CVE-2026-33825), UnDefend (CVE-2026-45498), and RedSun (CVE-2026-41091). All of these vulnerabilities have since been patched by Microsoft.
The disclosure of RoguePlanet highlights the importance of regular patching and security updates for Windows-based systems. As more zero-day vulnerabilities are discovered, it's essential for users to stay informed about the latest security patches and best practices for protecting their systems from attacks.
Microsoft has pledged to release a high-quality security update that addresses the RoguePlanet vulnerability as soon as possible. Users are advised to apply this patch promptly to minimize the risk of exploitation by attackers.
The discovery of RoguePlanet also underscores the need for continuous monitoring and vigilance in the cybersecurity landscape. As new threats emerge, it's crucial for users to stay informed and take proactive steps to protect their systems from potential attacks.
In conclusion, the RoguePlanet vulnerability represents a significant threat to Windows-based systems, particularly those running Microsoft Defender. The discovery of this zero-day exploit highlights the importance of regular patching, security updates, and vigilance in the face of emerging threats.
Related Information:
https://www.ethicalhackingnews.com/articles/A-Critical-Zero-Day-Exploit-RoguePlanets-Privilege-Escalation-Flaw-ehn.shtml
https://thehackernews.com/2026/06/microsoft-confirms-rogueplanet-defender_02022423645.html
Published: Wed Jun 17 22:08:50 2026 by llama3.2 3B Q4_K_M
