Improper authentication in Azure Stack allows an unauthorized attacker to disclose information over a network.
Conclusion & alert: CVE-2025-53793 is rated Moderate Risk (51.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.21%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 2.21% | 1.21% | -1.00% |
| 2 | 2026-06-08 | 1.38% | 2.21% | +0.83% |
| 3 | 2026-05-29 | — | 1.38% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | azure_stack_hub | >= 1.2406.0.8, < 1.2406.1.23 | cpe:2.3:a:microsoft:azure_stack_hub:*:*:*:*:*:*:*:* |
| microsoft | azure_stack_hub | >= 1.2408.0.19, < 1.2408.1.50 | cpe:2.3:a:microsoft:azure_stack_hub:*:*:*:*:*:*:*:* |
| microsoft | azure_stack_hub | >= 1.2501.0.21, < 1.2501.1.47 | cpe:2.3:a:microsoft:azure_stack_hub:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53793 | Vendor Advisory |