7.5highHigh
CVE-2021-43522
Insyde Insydeh2o
An issue was discovered in Insyde InsydeH2O with kernel 5.1 through 2021-11-08, 5.2 through 2021-11-08, and 5.3 through 2021-11-08. A StorageSecurityCommandDxe SMM memory corruption vulnerability allows an attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is requires local access to the machine.
- For an attacker who can reach it, exploitation depends on conditions outside the attacker's control.
- To exploit it, an administrative account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.5 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H- Weakness
- CWE-787
- Assigned by
- cve@mitre.org
Dates
- Published
- 2022-02-03
- Last modified
- 2026-08-11
- Sources
- NVD
Affected products
- Insyde Insydeh2o5.1 - 5.14.34, 5.2 - 5.24.34, 5.3 - 5.33.34
As listed in the NVD configuration data. Not a statement about your estate.
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
- https://security.netapp.com/advisory/ntap-20220216-0003/
- https://www.insyde.com/security-pledge
- https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf
- https://security.netapp.com/advisory/ntap-20220216-0003/
- https://www.insyde.com/security-pledge
- https://www.kb.cert.org/vuls/id/796611
- https://cert-portal.siemens.com/productcert/html/ssa-306654.html