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A security researcher has released a new Microsoft Defender zero-day exploit named "RoguePlanet" just hours after Microsoft fixed two previously disclosed flaws during June 2026 Patch Tuesday. [...]
Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed "BlueHammer." Separately, Google Chrome fixed its fourth zero-day of 2026, and an emergency update for Adobe Reader nixes an actively exploited flaw that can lead to remote code execution.
Microsoft this week pushed security updates to fix more than 60 vulnerabilities in its Windows operating systems and supported software, including at least one zero-day bug that is already being exploited. Microsoft also fixed a glitch that prevented some Windows 10 users from taking advantage of an extra year of security updates, which is nice because the zero-day flaw and other critical weaknesses patched today affect all versions of Windows, including Windows 10.
Now a zero-day, the vulnerability enables NTLM hash theft, an issue that Microsoft has already fixed twice before.
Microsoft has fixed a Windows Smart App Control and SmartScreen flaw that has been exploited in attacks as a zero-day since at least 2018. [...]
Cryptocurrency Users Targeted in Latest Campaign Involving FudModule RootkitA hacking group tied to North Korea exploited a zero-day vulnerability in the open source Google Chromium web browser to try and steal cryptocurrency, Microsoft said. The attack campaign is the latest to involve a sophisticated North Korean rootkit called FudModule. Google has fixed the flaw.
Microsoft patched a high-severity Windows Kernel privilege escalation vulnerability in February, six months after being informed that the flaw was being exploited as a zero-day. [...]
Microsoft fixed a security vulnerability this week that could be used by remote attackers to bypass recent patches for a critical Outlook zero-day security flaw abused in the wild. [...]
Thirteen of the 84 vulnerabilities fixed in yesterday’s update are classified as 'Critical'
The actively exploited but now-fixed Google Chrome zero-day flaw that came to light earlier this month was weaponized by an Israeli spyware company and used in attacks targeting journalists in the Middle East
Plus: Intel, AMD react to Hertzbleed data-leaking holes in CPUs Patch Tuesday Microsoft claims to have finally fixed the Follina zero-day flaw in Windows as part of its June Patch Tuesday batch, which included security updates to address 55 vulnerabilities.…