Main Vulnerability Database Vulnerabilities #VU93086

Use-after-free in Linux kernel - CVE-2021-47262

Published: June 22, 2024 / Updated: May 13, 2025

Vulnerability identifier: #VU93086

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2021-47262

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

Vendor: Linux Foundation

Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the arch/x86/kvm/trace.h. A local user can escalate privileges on the system.

Install update from vendor's website.