CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:CMicrosoft Defender Denial of Service Vulnerability
A Microsoft-based hacker has developed a new zero-day vulnerability in on-prem SharePoint, allowing them to gain system privileges on fully patched Windows systems. This represents a significant security risk, as it bypa…
Microsoft has released a patch to address a Defender vulnerability, dubbed RoguePlanet, which could allow an attacker to escalate privileges. The vulnerability was initially identified by Nightmare Eclipse (Chaotic Eclip…
Microsoft has patched a critical vulnerability, RoguePlanet, within its Defender antivirus software that could allow attackers to gain SYSTEM-level privileges. This flaw, discovered by Chaotic Eclipse, allows for arbitra…
Microsoft has formally disclosed that it's working to release a patch to address a Defender zero-day codenamed RoguePlanet. The vulnerability has now been assigned the CVE identifier CVE-2026-50656 (CVSS score: 7.8), wit…
The public PoC code exploits a race condition in Microsoft Defender to spawn a command prompt with System privileges. The post Microsoft Working on Patch for ‘RoguePlanet’ Zero-Day appeared first on SecurityWeek .
A new Windows zero-day exploit, dubbed RoguePlanet, has been released by the threat actor Nightmare Eclipse, targeting Microsoft Defender and potentially leading to local privilege escalation and BitLocker bypass. This f…
A security researcher, Chaotic Eclipse (MSNightmare), has released a proof-of-concept exploit, RoguePlanet, targeting a zero-day vulnerability in Microsoft Defender, granting SYSTEM-level access on updated Windows 11 and…
This article reports on a controversy between Microsoft and a security researcher, known as Nightmare Eclipse, regarding the disclosure of several zero-day vulnerabilities affecting Microsoft products. Microsoft initiall…
A critical Remote Code Execution (RCE) vulnerability (CVE-2026-41089) in Windows Netlogon is now being actively exploited in attacks, according to Belgium's national cybersecurity authority, the Centre for Cybersecurity…
Microsoft has strongly criticized the public disclosure of zero-day vulnerabilities affecting Windows components, particularly following a researcher's independent disclosures. The company asserts that uncoordinated disc…
This week’s security news highlights a significant GitHub breach orchestrated by TeamPCP, stemming from a compromised developer’s device and leveraging vulnerabilities exposed by the TanStack supply chain attack. Simulta…
Microsoft has disclosed two actively exploited vulnerabilities within its Defender security platform, CVE-2026-41091 and CVE-2026-45498, both of which allow for privilege escalation and denial-of-service attacks. These v…
