iommu/vt-d: Skip dev-iotlb flush for inaccessible PCIe device without scalable mode
CVE-2026-43161 is a vulnerability related to iommu/vt-d handling in Microsoft software version 3.0. The issue involves skipping the dev-iotlb flush for inaccessible PCIe devices that do not support scalable mode. No detailed technical or impact information is provided beyond this. There is no CVSS score or known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability concerns the iommu/vt-d component in Microsoft software version 3.0, where the dev-iotlb flush operation is skipped for inaccessible PCIe devices lacking scalable mode support. The provided information does not include further technical details, exploitation methods, or impact scenarios.
Potential Impact
The impact of this vulnerability is not explicitly described in the available data. No known exploits have been reported, and no CVSS score is assigned, leaving the precise risk level unclear.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or patch information is provided in the current data.
iommu/vt-d: Skip dev-iotlb flush for inaccessible PCIe device without scalable mode
Description
CVE-2026-43161 is a vulnerability related to iommu/vt-d handling in Microsoft software version 3.0. The issue involves skipping the dev-iotlb flush for inaccessible PCIe devices that do not support scalable mode. No detailed technical or impact information is provided beyond this. There is no CVSS score or known exploits in the wild at this time.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns the iommu/vt-d component in Microsoft software version 3.0, where the dev-iotlb flush operation is skipped for inaccessible PCIe devices lacking scalable mode support. The provided information does not include further technical details, exploitation methods, or impact scenarios.
Potential Impact
The impact of this vulnerability is not explicitly described in the available data. No known exploits have been reported, and no CVSS score is assigned, leaving the precise risk level unclear.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or patch information is provided in the current data.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-43161
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a42ed8f27e9c79719960e15
Added to database: 06/29/2026, 22:11:27 UTC
Last enriched: 06/29/2026, 22:55:27 UTC
Last updated: 07/31/2026, 19:24:47 UTC
Views: 15
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.