This is the latest zero-day released by security researcher Nightmare Eclipse, despite Microsoft publicly threatening to take legal action against them.
Tag: Vulnerability
SharePoint Vulnerability Exploited Shortly After PoC Release
The vulnerability was patched by Microsoft in July and CISA warned that it could end up being exploited in the wild.
Patch Tuesday: Update now to fix 421 flaws, including three zero-days
Microsoft’s August Patch Tuesday fixes 421 vulnerabilities, including three zero-days, 62 critical flaws, and dozens of Office remote code execution bugs.
Lazarus Used Post-Quantum Key Exchange to Deliver Zero-Day
Lazarus malware used post-quantum key exchange to protect delivery of a Windows zero-day exploit
Microsoft Defender ShieldBreak zero-day
A new zero-day vulnerability affecting Microsoft Defender has been publicly disclosed by a threat actor called Nightmare Eclipse.
Lazarus hackers pair fake job offers with Windows zero-day exploit
The North Korea-linked Lazarus group is using fake job offers, trojanized PDF software and a Windows zero-day in attacks aimed primarily at the defense…
Nightmare-Eclipse Drops ShieldBreak Windows Defender 0-day Vulnerability
The prolific and controversial security researcher known as Nightmare-Eclipse (also tracked under the alias Chaotic Eclipse) has released a ninth Windows…
Microsoft SharePoint RCE Vulnerability Lets Remote Attackers Execute Code
A newly disclosed vulnerability in Microsoft SharePoint Server, tracked as CVE-2026-63520, could allow attackers to execute arbitrary code remotely on…
Microsoft patches 400+ vulnerabilities, one zero-day under attack (CVE-2026-68820)
Microsoft’s August 2026 Patch Tuesday delivered security fixes for 400+ vulnerabilities, including one that has been exploited in zero-day attacks…
Attackers Exploit VMware vCenter Vulnerability to Gain Persistent Remote Access
Threat actors have begun to actively exploit a recently patched critical security flaw in Broadcom VMware vCenter, according to new findings from QUIRSO.…
ShieldBreak: New Windows Zero-Day Bypasses Microsoft’s RoguePlanet Patch
Chaotic Eclipse released a PoC for ShieldBreak, a Microsoft Defender zero-day that bypasses the CVE-2026-50656 patch and could enable SYSTEM-level code…
Fresh Windows Zero-Day Exploited in North Korean Cyberattacks
The bug allowed attackers to gain full control of the victims’ systems and deploy the ForestTiger backdoor.
Microsoft Outlook RCE Vulnerability Lets Attackers Execute Code Remotely
Microsoft has disclosed a new remote code execution (RCE) vulnerability in Outlook, tracked as CVE-2026-70329. They warn that successful exploitation…
ShieldBreak Zero-Day PoC Claims Microsoft Defender Patch Bypass With SYSTEM Access
The security researcher going by the name Chaotic Eclipse (aka INFINITE NIGHTMARE, MSNightmare, and Nightmare-Eclipse) has released a proof-of-concept…
Windows AFD.sys Zero-Day Exploited by Lazarus Hackers to Gain SYSTEM Access
Lazarus has expanded its long-running Operation Dream Job campaign by exploiting a Windows zero-day vulnerability that grants attackers SYSTEM-level…
Microsoft Patch Tuesday for August 2026 Fixed a Zero-Day and Wormable RCE
Microsoft Patch Tuesday for August 2026 fixes 398 CVEs, including an actively exploited zero-day and a wormable DNS flaw enabling remote code execution.…
Microsoft Patch Tuesday Update August 2026 Fixes Actively Exploited Windows Zero-Day
Microsoft’s August 2026 Patch Tuesday released fixes for hundreds of vulnerabilities across various products, including Windows, Office, SharePoint,…
Microsoft SharePoint Server Vulnerability Allows Attackers to Inject and Execute Malicious Code Remotely
A newly disclosed flaw in Microsoft SharePoint Server has raised fresh concerns across enterprise IT environments, as security researchers reveal how…
Cisco Patches Firewall Zero-Day Exploited for DoS Attacks
CVE-2026-20349 can be exploited remotely without authentication against Secure Firewall ASA and FTD devices.
Docker CopyEscape Vulnerability Enables Host File Overwrite and Root Code Execution
A critical vulnerability in Docker, tracked as CVE-2026-17106 and referred to as “CopyEscape,” allows malicious containers to overwrite files on the host…