Buffer overflow in VMware ESXi 4.0 through 5.0, and ESX 4.0 and 4.1, allows remote attackers to execute arbitrary code or cause a denial of service via unspecified vectors.
Conclusion & alert: CVE-2013-3657 is rated Moderate Risk (56.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.26%). 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 | 1.51% | 1.26% | -0.24% |
| 2 | 2025-03-29 | 1.26% | 1.51% | +0.24% |
| 3 | 2025-03-17 | — | 1.26% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| vmware | esx | 4.0 | cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:* |
| vmware | esx | 4.1 | cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:* |
| vmware | esxi | 4.0 | cpe:2.3:o:vmware:esxi:4.0:*:*:*:*:*:*:* |
| vmware | esxi | 4.0 | cpe:2.3:o:vmware:esxi:4.0:1:*:*:*:*:*:* |
| vmware | esxi | 4.0 | cpe:2.3:o:vmware:esxi:4.0:2:*:*:*:*:*:* |
| vmware | esxi | 4.0 | cpe:2.3:o:vmware:esxi:4.0:3:*:*:*:*:*:* |
| vmware | esxi | 4.0 | cpe:2.3:o:vmware:esxi:4.0:4:*:*:*:*:*:* |
| vmware | esxi | 4.1 | cpe:2.3:o:vmware:esxi:4.1:*:*:*:*:*:*:* |
| vmware | esxi | 4.1 | cpe:2.3:o:vmware:esxi:4.1:1:*:*:*:*:*:* |
| vmware | esxi | 4.1 | cpe:2.3:o:vmware:esxi:4.1:2:*:*:*:*:*:* |
| vmware | esxi | 5.0 | cpe:2.3:o:vmware:esxi:5.0:*:*:*:*:*:*:* |