Description
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.
Related CPE's
o
insyde
insydeh2o
References
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
https://security.netapp.com/advisory/ntap-20220216-0006/
https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2021001
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
https://security.netapp.com/advisory/ntap-20220216-0006/
https://www.insyde.com/security-pledge
https://www.insyde.com/security-pledge/SA-2021001
CVSS impact metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 · High
Information
Source identifier
Vulnerability status
Modified
Published
2021-10-01T01:15:06.593Z
4 years agoLast modified
2025-11-04T19:16:00.367Z
4 months ago