Disclosure summary
CVE-2026-6726 is a Spoofing vulnerability in the TPM 2.0 reference implementation involving improper object-slot reuse. MITRE assigned this CVE on behalf of the Trusted Computing Group. This document incorporates updates to Microsoft Windows that address this vulnerability. Please see CVE-2026-6726 for more information.
Source-reported weakness categories
CWE-908, CWE-843
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
Cyber Exposure Alerts · RSS-bccb1ecbd3b964467d9c89a15b4b8a1a5b8
Open original source · Updated Aug 11, 2026
Microsoft's August 2026 Patch Tuesday addresses 398 CVEs (CVE-2026-68820)
CVE mention in publisher metadata; check the original affected versions.
Microsoft Security Updates (CVRF) · 2026-Aug
Open original source · Updated Aug 11, 2026
MITRE: CVE-2026-6726 TPM 2.0 Improper Object Slot Reuse
Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.
Microsoft maximum product score: 7.9
| Vendor | Product / association | Version / bounds |
|---|---|---|
| Microsoft update guide | Windows 10 Version 1809 for 32-bit Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 1809 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2019 | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2019 (Server Core installation) | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2022 | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2022 (Server Core installation) | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 21H2 for 32-bit Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 21H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 21H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 22H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 22H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 22H2 for 32-bit Systems | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2025 (Server Core installation) | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 25H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 25H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 23H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 23H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 24H2 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 24H2 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows Server 2025 | (MSRC status code 3) |
| Microsoft update guide | Windows 11 version 26H1 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 11 Version 26H1 for ARM64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 1607 for 32-bit Systems | (MSRC status code 3) |
| Microsoft update guide | Windows 10 Version 1607 for x64-based Systems | (MSRC status code 3) |
| Microsoft update guide | Azure Confidential Compute VM SKU DCasv5/DCadsv5 | (MSRC status code 3) |
| Microsoft update guide | Azure Confidential Compute VM SKU ECasv5/ECadsv5 | (MSRC status code 3) |
| Microsoft update guide | Azure Confidential Compute VM SKU DCasv6/DCadsv6 | (MSRC status code 3) |
| Microsoft update guide | DCesv6-series Azure VM | (MSRC status code 3) |
| Microsoft update guide | Azure Confidential Compute VM SKU ECasv6/ECadsv6 | (MSRC status code 3) |
| Microsoft update guide | Ecesv6-series Azure VM | (MSRC status code 3) |
Vendor remediation references
- 5120238 · build 10.0.17763.9121 · product IDs 11568, 11569, 11571, 11572
- Vendor guidance · product IDs 11568, 11569, 11571, 11572
- 5120242 · build 10.0.20348.5499 · product IDs 11923, 11924
- Vendor guidance · product IDs 11923, 11924
- 5120242 · product IDs 11923, 11924
- 5120229 · build 10.0.20348.5440 · product IDs 11923, 11924
- Vendor guidance · product IDs 11923, 11924
- 5123303 · build 10.0.20348.5499 · product IDs 11923, 11924
- Vendor guidance · product IDs 11923, 11924
- 5120249 · build 10.0.19044.7663 · product IDs 11929, 11930, 11931
- Vendor guidance · product IDs 11929, 11930, 11931
- 5120249 · build 10.0.19045.7663 · product IDs 12097, 12098, 12099
- Vendor guidance · product IDs 12097, 12098, 12099
- 5120233 · build 10.0.26100.33296 · product IDs 12437, 12436
- Vendor guidance · product IDs 12437, 12436
- 5120233 · product IDs 12437, 12436
- 5120228 · build 10.0.26100.33222 · product IDs 12437, 12436
- Vendor guidance · product IDs 12437, 12436
- 5120228 · product IDs 12437, 12436
- 5121003 · build 10.0.26200.9168 · product IDs 20437, 20438
- Vendor guidance · product IDs 20437, 20438
- 5120994 · build 10.0.26200.9106 · product IDs 20437, 20438
- Vendor guidance · product IDs 20437, 20438
- 5123607 · build 10.0.26200.9165 · product IDs 20437, 20438
- Vendor guidance · product IDs 20437, 20438
- 5123273 · build 10.0.26200.9165 · product IDs 20437, 20438
- Vendor guidance · product IDs 20437, 20438
- 5120240 · build 10.0.22631.7517 · product IDs 12242, 12243
- Vendor guidance · product IDs 12242, 12243
- 5121003 · build 10.0.26100.9168 · product IDs 12389, 12390
- Vendor guidance · product IDs 12389, 12390
- 5120994 · build 10.0.26100.9106 · product IDs 12389, 12390
- Vendor guidance · product IDs 12389, 12390
- 5123607 · build 10.0.26100.9165 · product IDs 12389, 12390
- Vendor guidance · product IDs 12389, 12390
- 5123273 · build 10.0.26100.9165 · product IDs 12389, 12390
- Vendor guidance · product IDs 12389, 12390
- 5121000 · build 10.0.28000.2704 · product IDs 20853, 20854
- Vendor guidance · product IDs 20853, 20854
- 5120418 · build 10.0.14393.9418 · product IDs 10852, 10853
- Vendor guidance · product IDs 10852, 10853
Original records & references
- NIST NVD record
- CVE Program record
- msrc.microsoft.com — Vendor advisory
PUBLISHED 2026-08-11T03:00:00-04:00
MODIFIED 2026-08-11T03:00:00-04:00
INGESTED 2026-10-08T12:40:37-04:00