Vulnerability Monitor

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CVE-2021-42113

An issue was discovered in StorageSecurityCommandDxe in Insyde InsydeH2O with Kernel 5.1 before 05.14.28, Kernel 5.2 before 05.24.28, and Kernel 5.3 before 05.32.25. An SMM callout vulnerability allows an attacker to hijack execution flow of code running in System Management Mode. Exploiting this issue could lead to escalating privileges to SMM.

Published

2022-02-03T02:15:07.337

Last Modified

2025-11-04T20:16:01.963

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.2 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	insyde	insydeh2o	< 5.14.34	Yes
Application	insyde	insydeh2o	< 5.24.34	Yes
Application	insyde	insydeh2o	< 5.24.34	Yes

References

https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20220216-0012/ Third Party Advisory ([email protected])
https://www.insyde.com/security-pledge Vendor Advisory ([email protected])
https://www.insyde.com/security-pledge/SA-2022008 Vendor Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20220216-0012/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.insyde.com/security-pledge Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.insyde.com/security-pledge/SA-2022008 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.kb.cert.org/vuls/id/796611 (af854a3a-2127-422b-91ae-364da2661108)