Unrated severityNVD Advisory· Published Sep 23, 2022· Updated May 5, 2025
CVE-2022-36338
CVE-2022-36338
Description
An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. An SMM callout vulnerability in the SMM driver FwBlockServiceSmm, creating SMM, leads to arbitrary code execution. An attacker can replace the pointer to the UEFI boot service GetVariable with a pointer to malware, and then generate a software SMI.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
2- Insyde/InsydeH2Odescription
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
3- binarly.io/advisories/BRLY-2022-017/index.htmlmitrex_refsource_MISC
- www.insyde.com/security-pledgemitrex_refsource_MISC
- www.insyde.com/security-pledge/SA-2022029mitrex_refsource_MISC
News mentions
0No linked articles in our index yet.