Vulnerability Database

296,147

Total vulnerabilities in the database

CVE-2021-20181

A race condition flaw was found in the 9pfs server implementation of QEMU up to and including 5.2.0. This flaw allows a malicious 9p client to cause a use-after-free error, potentially escalating their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity as well as system availability.

  • Published: May 13, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-20181
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v2:

  • Severity: Medium
  • Score: 6.9
  • AV:L/AC:M/Au:N/C:C/I:C/A:C

CWEs:

Software From Fixed in
qemu / qemu - 5.2.0.x
debian / debian_linux 9.0 9.0.x
debian / debian_linux 10.0 10.0.x