Vulnerability Database

314,453

Total vulnerabilities in the database

CVE-2021-20239

A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.

  • Published: May 28, 2021
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-20239
  • Severity: Low
  • Exploit:

CVSS v3:

  • Severity: Low
  • Score: 3.3
  • AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v2:

  • Severity: Low
  • Score: 2.1
  • AV:L/AC:L/Au:N/C:P/I:N/A:N

CWEs: