The check_diskio plugin 3.2.6 and earlier for Nagios and Icinga allows local users to write to arbitrary files via a symlink attack on a temporary file with a predictable name (tmp/check_diskio_status-*-*).
Conclusion & alert: CVE-2014-8994 is rated Low Risk (23.2/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.33%). 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 | 0.06% | 0.33% | +0.27% |
| 2 | 2025-03-17 | 0.04% | 0.06% | +0.02% |
| 3 | 2023-03-07 | — | 0.04% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 3.6 | 2.0 | LOW |
|
3.9 | 4.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| check_diskio_project | check_diskio | <= 3.2.5 | cpe:2.3:a:check_diskio_project:check_diskio:*:*:*:*:*:*:*:* |