Threat actors have been exploiting the BlueHammer Microsoft Defender vulnerability as a zero-day to gain System privileges.

That's one heck of a fly swatter, Anthropic.

A security researcher frustrated with Microsoft has released the BlueHammer Windows zero-day exploit, telling the company, “I ...

Fortinet has confirmed that attackers are already exploiting a 9.1-rated zero-day vulnerability. Emergency security update ...

Google Threat Intelligence Group (GTIG) tracked 90 zero-day vulnerabilities actively exploited throughout 2025, almost half of them in enterprise software and appliances. The figure is a 15% increase ...

The latest monthly Patch Tuesday update from Microsoft landed earlier on 14 April, including two notable zero-day flaws amid a total of over 160 distinct issues, and almost 250 accounting for ...

Chipmaker giant Qualcomm released patches on Monday fixing a series of vulnerabilities in dozens of chips, including three zero-days that the company said may be in use as part of hacking campaigns.

A threat actor linked to the Abyss ransomware campaign appears to be exploiting a zero-day flaw to plant a stealthy new backdoor on fully patched end-of-life SonicWall Secure Mobile Access (SMA) 100 ...

Google has released an urgent update for its Chrome browser to fix a newly discovered zero-day security flaw that hackers are already exploiting. This is the sixth zero-day Chrome has faced this year, ...