High severity8.2NVD Advisory· Published Feb 3, 2022· Updated Aug 11, 2026
CVE-2021-43615
CVE-2021-43615
Description
An issue was discovered in HddPassword in Insyde InsydeH2O with kernel 5.1 before 05.16.23, 5.2 before 05.26.23, 5.3 before 05.35.23, 5.4 before 05.43.22, and 5.5 before 05.51.22. An 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.
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Affected products
3- Insyde/InsydeH2Odescription
Patches
Vulnerability mechanics
References
6- cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfnvdThird Party Advisory
- security.netapp.com/advisory/ntap-20220216-0010/nvdThird Party Advisory
- www.insyde.com/security-pledgenvdVendor Advisory
- www.insyde.com/security-pledge/SA-2022013nvdVendor Advisory
- cert-portal.siemens.com/productcert/html/ssa-306654.htmlnvd
- www.kb.cert.org/vuls/id/796611nvd
News mentions
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