Unrated severityNVD Advisory· Published Feb 3, 2022· Updated Nov 4, 2025
CVE-2021-42059
CVE-2021-42059
Description
An issue was discovered in Insyde InsydeH2O Kernel 5.0 before 05.08.41, Kernel 5.1 before 05.16.41, Kernel 5.2 before 05.26.41, Kernel 5.3 before 05.35.41, and Kernel 5.4 before 05.42.20. A stack-based buffer overflow leads toarbitrary code execution in UEFI DisplayTypeDxe DXE driver.
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-20220216-0008/mitrex_refsource_CONFIRM
- www.insyde.com/security-pledgemitrex_refsource_MISC
- www.insyde.com/security-pledge/SA-2022006mitrex_refsource_MISC
News mentions
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