^{CVE-2022-26361:}IOMMU: RMRR (VT-d) and unity map (AMD-Vi) handling issues T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR") for Intel VT-d or Unity Mapping ranges for AMD-Vi. These are typically used for platform tasks such as legacy USB emulation. Since the precise purpose of these regions is unknown, once a device associated with such a region is active, the mappings of these regions need to remain continuouly accessible by the device. This requirement has been violated. Subsequent DMA or interrupts from the device may have unpredictable behaviour, ranging from IOMMU faults to memory corruption.

Industry ExposureMost to least

This section illustrates the prevalence of a specific Common Vulnerabilities and Exposures (CVE) across various industries based on customer reports. The ranking displays industries from the most to least affected by this particular vulnerability, offering valuable insight into where this CVE has been most frequently observed. This information can help organizations within these sectors prioritize their security efforts, understand their relative risk exposure compared to their peers, and focus remediation strategies where they are most needed. By understanding the industry-specific impact, organizations can make more informed decisions regarding patching, resource allocation, and overall risk management related to this CVE.

1. Manufacturing
   Manufacturing
2. Professional, Scientific, & Technical Services
   Professional, Scientific, & Technical Services
3. Public Administration
   Public Administration
4. Retail Trade
   Retail Trade
5. Utilities
   Utilities
6. Accommodation & Food Services
   Accommodation & Food Services
7. Administrative, Support, Waste Management & Remediation Services
   Administrative, Support, Waste Management & Remediation Services
8. Agriculture, Forestry Fishing & Hunting
   Agriculture, Forestry Fishing & Hunting
9. Arts, Entertainment & Recreation
   Arts, Entertainment & Recreation
10. Construction
    Construction
11. Educational Services
    Educational Services
12. Finance and Insurance
    Finance and Insurance
13. Health Care & Social Assistance
    Health Care & Social Assistance
14. Information
    Information
15. Management of Companies & Enterprises
    Management of Companies & Enterprises
16. Mining
    Mining
17. Other Services (except Public Administration)
    Other Services (except Public Administration)
18. Real Estate Rental & Leasing
    Real Estate Rental & Leasing
19. Transportation & Warehousing
    Transportation & Warehousing
20. Wholesale Trade
    Wholesale Trade