Unspecified vulnerability in Microsoft Malware Protection Engine (mpengine.dll) 1.1.3520.0 and 0.1.13.192, as used in multiple Microsoft products, allows context-dependent attackers to cause a denial of service (disk space exhaustion) via a file with "crafted data structures" that trigger the creation of large temporary files, a different vulnerability than CVE-2008-1437.
Conclusion & alert: CVE-2008-1438 is rated Moderate Risk (49/100): CVSS Medium severity, with high exploitation likelihood (EPSS 43.71%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2025-03-30 | 50.05% | 43.71% | -6.34% |
| 2 | 2025-03-29 | 43.71% | 50.05% | +6.34% |
| 3 | 2025-03-17 | — | 43.71% | — |
Full EPSS history (20 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| microsoft | antigen_for_exchange | — | cpe:2.3:a:microsoft:antigen_for_exchange:*:*:*:*:*:*:*:* |
| microsoft | antigen_for_smtp_gateway | — | cpe:2.3:a:microsoft:antigen_for_smtp_gateway:*:*:*:*:*:*:*:* |
| microsoft | diagnostics_and_recovery_toolkit | 6.0 | cpe:2.3:a:microsoft:diagnostics_and_recovery_toolkit:6.0:*:*:*:*:*:*:* |
| microsoft | forefront_client_security | — | cpe:2.3:a:microsoft:forefront_client_security:*:*:*:*:*:*:*:* |
| microsoft | forefront_security_for_exchange_server | — | cpe:2.3:a:microsoft:forefront_security_for_exchange_server:*:*:*:*:*:*:*:* |
| microsoft | forefront_security_for_sharepoint | — | cpe:2.3:a:microsoft:forefront_security_for_sharepoint:*:*:*:*:*:*:*:* |
| microsoft | malware_protection_engine | 0.1.13.192 | cpe:2.3:a:microsoft:malware_protection_engine:0.1.13.192:*:*:*:*:*:*:* |
| microsoft | malware_protection_engine | 1.1.3520.0 | cpe:2.3:a:microsoft:malware_protection_engine:1.1.3520.0:*:*:*:*:*:*:* |
| microsoft | windows_defender | — | cpe:2.3:a:microsoft:windows_defender:*:*:*:*:*:*:*:* |
| microsoft | windows_live_onecare | — | cpe:2.3:a:microsoft:windows_live_onecare:*:*:*:*:*:*:*:* |