Common Vulnerabilities and Exposures

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What Does Common Vulnerabilities and Exposures Mean?

Common Vulnerabilities and Exposures (CVE) is a dictionary-type reference system or list for publicly known information-security threats. Every exposure or vulnerability included in the CVE list consists of one common, standardized CVE name.

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CVE is maintained by the MITRE Corporation and sponsored by the National Cyber Security Division (NCSD) of the Department of Homeland Security. The CVE dictionary, a shared information security vulnerability data list, may be viewed by the public.

Techopedia Explains Common Vulnerabilities and Exposures

In information security, a vulnerability is a software coding error that is used by hackers to enter an information system and perform unauthorized activities while posing as an authorized user.

An exposure is a software error that allows hackers to break into a system. During an exposure, attackers may gain information or hide unauthorized actions.

Items in the CVE list get names based on the year of their formal inclusion and the order in which they were included in the list that year. The CVE helps computer security tool vendors identify vulnerabilities and exposures.

Before CVE, tools had proprietary vulnerability databases, and no common dictionary existed. The key objective of CVE is to help share data across different vulnerability databases and security tools, assisting security professionals and antivirus software providers.

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Margaret Rouse
Technology Expert
Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.