Untrusted search path vulnerability in MEO Encryption Software 2.02 allows local users to gain privileges via a Trojan horse dwmapi.dll file in the current working directory, as demonstrated by a directory that contains a .meo or .cry file. NOTE: some of these details are obtained from third party information.
Conclusion & alert: CVE-2010-5220 is rated Low Risk (37.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.36%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
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 | 0.09% | 0.36% | +0.28% |
| 2 | 2026-04-04 | 0.04% | 0.09% | +0.05% |
| 3 | 2025-03-30 | — | 0.04% | — |
Full EPSS history (6 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.9 | 2.0 | MEDIUM |
|
3.4 | 10.0 | [email protected] |
: Per: http://cwe.mitre.org/data/definitions/426.html 'CWE-426 Untrusted Search Path'
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| nchsoftware | meo_encryption_software | 2.02 | cpe:2.3:a:nchsoftware:meo_encryption_software:2.02:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.org/1010-exploits/meo-dllhijack.txt | |
| http://secunia.com/advisories/41843 | Vendor Advisory |