Vulnerability Database

289,599

Total vulnerabilities in the database

CVE-2021-33626

A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.

  • Published: Oct 1, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-33626
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.8
  • AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: Low
  • Score: 4.6
  • AV:L/AC:L/Au:N/C:P/I:P/A:P

CWEs:

Software From Fixed in
insyde / insydeh2o 5.3 5.34.44
insyde / insydeh2o 5.2 5.25.44
insyde / insydeh2o 5.1 5.16.25
insyde / insydeh2o 5.4 5.42.44
insyde / insydeh2o 5.3 5.35.25
insyde / insydeh2o 5.2 5.26.25
insyde / insydeh2o 5.4 5.43.25