Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.
Metrics
Affected Vendors & Products
References
History
Thu, 22 Oct 2026 13:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Microsoft windows 10 21h2
Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 26h2 |
|
| CPEs | cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:* |
|
| Vendors & Products |
Microsoft windows 10 21h2
Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 26h2 |
Wed, 14 Oct 2026 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 13 Oct 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. | |
| Title | Windows Kernel Elevation of Privilege Vulnerability | |
| First Time appeared |
Microsoft
Microsoft windows 10 1809 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 Version 26h2 For Arm64-based Systems Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 2025 |
|
| Weaknesses | CWE-122 | |
| CPEs | cpe:2.3:a:microsoft:windows_11_version_26h2_for_arm64-based_systems:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_21H2:*:*:*:*:*:*:x86:* cpe:2.3:o:microsoft:windows_10_22H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_23H2:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_11_24H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_25H2:*:*:*:*:*:*:arm64:* cpe:2.3:o:microsoft:windows_11_26H1:*:*:*:*:*:*:x64:* cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Microsoft
Microsoft windows 10 1809 Microsoft windows 10 21h2 Microsoft windows 10 22h2 Microsoft windows 11 23h2 Microsoft windows 11 24h2 Microsoft windows 11 25h2 Microsoft windows 11 26h1 Microsoft windows 11 Version 26h2 For Arm64-based Systems Microsoft windows Server 2019 Microsoft windows Server 2022 Microsoft windows Server 2025 |
|
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: microsoft
Published: 2026-10-13T18:59:38.524Z
Updated: 2026-10-23T22:20:46.722Z
Reserved: 2026-08-03T23:28:38.302Z
Link: CVE-2026-70121
Updated: 2026-10-13T20:57:06.699Z
Status : Analyzed
Published: 2026-10-13T19:19:24.260
Modified: 2026-10-22T12:50:13.430
Link: CVE-2026-70121
No data.