What is CVE?

CVE: CVE (Common Vulnerabilities and Exposures) is a public catalog of known cybersecurity vulnerabilities. Each entry gets a unique identifier like CVE-2024-12345 so teams can track and discuss specific flaws consistently.

CVE Explained in Detail

MITRE Corporation maintains the CVE system with funding from CISA. Each CVE entry includes a description, affected products, severity score (CVSS), and references to patches or advisories.

CVE Lifecycle

  1. Discovery: A researcher, vendor, or attacker finds a vulnerability.
  2. Assignment: A CVE Numbering Authority (CNA) assigns a CVE ID.
  3. Publication: Details go into the National Vulnerability Database (NVD).
  4. Remediation: Vendors release patches. You apply them based on risk priority.

CVSS Severity Ratings

  • Critical (9.0 to 10.0): Patch immediately.
  • High (7.0 to 8.9): Patch within days.
  • Medium (4.0 to 6.9): Patch within weeks.
  • Low (0.1 to 3.9): Patch during your next maintenance window.