VULNERABILITY INTELLIGENCE

CVE-2023-39191

CVSS score8.2 HIGH
EPSS probability0.53%
CISA KEVNot currently listed
Published2023-10-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Description

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

Weakness classification

  • secalert@redhat.com: CWE-20
  • nvd@nist.gov: NVD-CWE-noinfo

Primary references