CVE-2026-50324
Analyzed
Analyzed - Analysis Complete
AD FS Infinite Loop Denial of Service
Vulnerability report for CVE-2026-50324, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-07-14
Last updated on: 2026-07-22
Assigner: Microsoft Corporation
Description
Description
Loop with unreachable exit condition ('infinite loop') in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| microsoft | windows_server_2012 | r2 |
| microsoft | windows_server_2012 | * |
| microsoft | windows_10_1607 | to 10.0.14393.9339 (exc) |
| microsoft | windows_10_1607 | to 10.0.14393.9339 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.9020 (exc) |
| microsoft | windows_10_1809 | to 10.0.17763.9020 (exc) |
| microsoft | windows_server_2016 | to 10.0.14393.9339 (exc) |
| microsoft | windows_server_2019 | to 10.0.17763.9020 (exc) |
| microsoft | windows_server_2022 | to 10.0.20348.5386 (exc) |
| microsoft | windows_server_2025 | to 10.0.26100.33158 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-835 | The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. |
