Vulnerability Database

313,825

Total vulnerabilities in the database

CVE-2022-28736

There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2's memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.

  • Published: Jul 20, 2023
  • Updated: Nov 16, 2025
  • CVE: CVE-2022-28736
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 6.4
  • AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

CWEs: