VULNERABILITY INTELLIGENCE

CVE-2022-4744

CVSS score7.8 HIGH
EPSS probability0.46%
CISA KEVNot currently listed
Published2023-03-30
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

Weakness classification

  • CWE-415: Double Free
  • CWE-460: Improper Cleanup on Thrown Exception

Primary references