Unrated severityNVD Advisory· Published Feb 3, 2022· Updated Nov 4, 2025
CVE-2021-42060
CVE-2021-42060
Description
An issue was discovered in Insyde InsydeH2O Kernel 5.0 through 05.08.41, Kernel 5.1 through 05.16.41, Kernel 5.2 before 05.23.22, and Kernel 5.3 before 05.32.22. An Int15ServiceSmm 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Insyde/InsydeH2O Kerneldescription
Patches
Vulnerability mechanics
No source-code context for this CVE — mechanics is only generated when we can read the actual fix diff. Without that, the four sections (root cause, attack vector, affected code, fix) would be speculation rather than analysis.
References
4- cert-portal.siemens.com/productcert/pdf/ssa-306654.pdfmitrex_refsource_CONFIRM
- security.netapp.com/advisory/ntap-20220217-0015/mitrex_refsource_CONFIRM
- www.insyde.com/security-pledgemitrex_refsource_MISC
- www.insyde.com/security-pledge/SA-2022007mitrex_refsource_MISC
News mentions
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