VULNERABILITY INTELLIGENCE

CVE-2021-20239

CVSS score3.3 LOW
EPSS probability0.26%
CISA KEVNot currently listed
Published2021-05-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Description

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.

Weakness classification

  • secalert@redhat.com: CWE-822
  • nvd@nist.gov: CWE-119

Primary references