A CPU vulnerability refers to a security flaw in a computer's central processing unit that can be exploited by attackers. These vulnerabilities can allow unauthorized access to sensitive data, enabling malicious software to read or manipulate information stored in memory. Common examples include the Meltdown and Spectre vulnerabilities, which affect many modern processors. Such vulnerabilities can impact a wide range of devices, from personal computers to servers and smartphones. Manufacturers often release patches to mitigate these risks, but users must regularly update their systems to protect against potential threats. Awareness of CPU vulnerabilities is essential for maintaining cybersecurity.