Microsoft Host Integration Server (HIS) 2000, 2004, and 2006 does not limit RPC access to administrative functions, which allows remote attackers to bypass authentication and execute arbitrary programs via a crafted SNA RPC message using opcode 1 or 6 to call the CreateProcess function, aka "HIS Command Execution Vulnerability."
Conclusion & alert: CVE-2008-3466 is rated High Exploit Risk (87.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 84.72%, 99th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2025-06-30 | 86.58% | 84.72% | -1.86% |
| 2 | 2025-05-26 | 87.55% | 86.58% | -0.97% |
| 3 | 2025-03-30 | — | 87.55% | — |
Full EPSS history (21 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | host_integration_server_2000 | — | cpe:2.3:a:microsoft:host_integration_server_2000:*:*:*:*:client:*:*:* |
| microsoft | host_integration_server_2000 | — | cpe:2.3:a:microsoft:host_integration_server_2000:*:sp2:*:*:server:*:*:* |
| microsoft | host_integration_server_2004 | — | cpe:2.3:a:microsoft:host_integration_server_2004:*:*:*:*:client:*:*:* |
| microsoft | host_integration_server_2004 | — | cpe:2.3:a:microsoft:host_integration_server_2004:*:*:*:*:server:*:*:* |
| microsoft | host_integration_server_2004 | — | cpe:2.3:a:microsoft:host_integration_server_2004:*:sp1:*:*:server:*:*:* |
| microsoft | host_integration_server_2006 | — | cpe:2.3:a:microsoft:host_integration_server_2006:*:*:*:*:*:*:x64:* |
| microsoft | host_integration_server_2006 | — | cpe:2.3:a:microsoft:host_integration_server_2006:*:*:*:*:*:*:x86:* |