HTTP Protocol Stack Remote Code Execution Vulnerability
Conclusion & alert: CVE-2023-23392 is rated Moderate Risk (60/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.67%). 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 | 14.46% | 1.67% | -12.78% |
| 2 | 2026-05-12 | 11.72% | 14.46% | +2.73% |
| 3 | 2026-04-06 | — | 11.72% | — |
Full EPSS history (39 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | windows_11_21h2 | < 10.0.22000.1696 | cpe:2.3:o:microsoft:windows_11_21h2:*:*:*:*:*:*:*:* |
| microsoft | windows_11_22h2 | < 10.0.22000.1413 | cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* |
| microsoft | windows_server_2022 | — | cpe:2.3:o:microsoft:windows_server_2022:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-23392 | Patch Vendor Advisory |