A “0.0.0.0-Day” vulnerability affecting Chrome, Safari and Firefox can be – and has been – exploited by attackers to gain access to services on internal networks, Oligo Security researchers have revealed. The vulnerability stems from how those popular browsers handle network requests from external, public websites, and may allow attackers to change settings, gain access to protected information, uploading malicious models, or even achieve remote code execution.

Source: Help Net Security