Quest DR Series Disk Backup software version before 4.0.3.1 allows command injection (issue 41 of 46).
Conclusion & alert: CVE-2018-11183 is rated Moderate Risk (64.2/100): CVSS High severity, with high exploitation likelihood (EPSS 4.60%, 90th 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 | 2026-06-15 | 7.27% | 4.60% | -2.67% |
| 2 | 2025-12-16 | 7.62% | 7.27% | -0.35% |
| 3 | 2025-08-29 | — | 7.62% | — |
Full EPSS history (15 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 8.8 | 3.0 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 6.5 | 2.0 | MEDIUM |
|
8.0 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| quest | disk_backup | < 4.0.3.1 | cpe:2.3:a:quest:disk_backup:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://packetstormsecurity.com/files/148003/Quest-DR-Series-Disk-Backup-Software-4.0.3-Code-Execution.html | Third Party Advisory VDB Entry |
| http://seclists.org/fulldisclosure/2018/May/71 | Mailing List Third Party Advisory |
| https://www.coresecurity.com/advisories/quest-dr-series-disk-backup-multiple-vulnerabilities | Technical Description Third Party Advisory |