Microsoft scrambles to patch a Defender security flaw called RoguePlanet

A week ago, the security researcher who goes by “Nightmare Eclipse” published information about RoguePlanet, a zero-day ...

New Windows Zero-Day Claims BitLocker Bypass Amid Microsoft Disclosure Fight

A new Windows zero-day reportedly bypasses BitLocker, adding pressure on Microsoft as researchers debate the exploit’s real-world impact.
Dark Reading

Exploits Turn Windows Defender Into Attacker Tool

Threat actors are using three publicly available proof-of-concept exploits to attack Microsoft Defender and turn the security platform's primary cleanup and protection functions against organizations ...

2 New Microsoft Defender Zero-Days Exploited—Patch Now Rolling Out

Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.
Windows Report

Microsoft Confirms RoguePlanet Defender Zero-Day, Patch in Development

Microsoft has confirmed CVE-2026-50656, the RoguePlanet Defender zero-day that can grant SYSTEM privileges on Windows 10 and ...

Microsoft says it's hard at work on a patch for this worrying Defender zero-day

RoguePlanet now has a CVE and a patch in the works, a week after the disclosure of a PoC.
TechRepublic

Microsoft Defender Flaws Exploited on Windows, Two Left Unpatched

Although the team with Microsoft moved swiftly to patch the BlueHammer vulnerability, other exploits still threaten Microsoft Defender and Windows users. No less than ...
TechCrunch

Hackers are abusing unpatched Windows security flaws to hack into organizations

Hackers have broken into at least one organization using Windows vulnerabilities published online by a disgruntled security researcher over the last two weeks, according to a cybersecurity firm. On ...