CVE-2026-70122
Analyzed
Analyzed - Analysis Complete
Windows Broadcast DVR User Service TOCTOU Race Condition
Vulnerability report for CVE-2026-70122, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-13
Last updated on: 2026-10-28
Assigner: Microsoft Corporation
Description
Description
Time-of-check time-of-use (toctou) race condition in Windows Broadcast DVR User Service allows an authorized attacker to elevate privileges locally.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_10_21h2 | to 10.0.19044.7807 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.7807 (exc) |
| microsoft | windows_10_21h2 | to 10.0.19044.7807 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.7652 (exc) |
| microsoft | windows_11_23h2 | to 10.0.22631.7652 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.9711 (exc) |
| microsoft | windows_11_24h2 | to 10.0.26100.9711 (exc) |
| microsoft | windows_11_25h2 | to 10.0.26200.9711 (exc) |
| microsoft | windows_11_25h2 | to 10.0.26200.9711 (exc) |
| microsoft | windows_11_26h1 | to 10.0.28000.3231 (exc) |
| microsoft | windows_11_26h1 | to 10.0.28000.3231 (exc) |
| microsoft | windows_11_26h2 | to 10.0.26300.9711 (exc) |
| microsoft | windows_11_26h2 | to 10.0.26300.9711 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7807 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7807 (exc) |
| microsoft | windows_10_22h2 | to 10.0.19045.7807 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-367 | The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. |
