lsassd in Likewise Open /Enterprise 5.3 before build 7845, Open 6.0 before build 8325, and Enterprise 6.0 before build 178, as distributed in VMware ESXi 4.1 and ESX 4.1 and possibly other products, allows remote attackers to cause a denial of service (daemon crash) via an Active Directory login attempt that provides a username containing an invalid byte sequence.
Conclusion & alert: CVE-2011-1786 is rated Moderate Risk (49/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.77%). 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 | 2025-03-30 | 3.40% | 2.77% | -0.63% |
| 2 | 2025-03-29 | 2.77% | 3.40% | +0.63% |
| 3 | 2025-03-17 | — | 2.77% | — |
Full EPSS history (6 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 |
|---|---|---|---|
| likewise | likewise_open | 5.3 | cpe:2.3:a:likewise:likewise_open:5.3:*:enterprise:*:*:*:*:* |
| likewise | likewise_open | 6.0 | cpe:2.3:a:likewise:likewise_open:6.0:*:*:*:*:*:*:* |
| likewise | likewise_open | 6.0 | cpe:2.3:a:likewise:likewise_open:6.0:*:enterprise:*:*:*:*:* |
| vmware | esx | 4.1 | cpe:2.3:a:vmware:esx:4.1:*:*:*:*:*:*:* |
| vmware | esxi | 4.1 | cpe:2.3:a:vmware:esxi:4.1:*:*:*:*:*:*:* |