rpc.mountd on Linux, Ultrix, and possibly other operating systems, allows remote attackers to determine the existence of a file on the server by attempting to mount that file, which generates different error messages depending on whether the file exists or not.
Conclusion & alert: CVE-1999-1225 is rated Moderate Risk (47.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.76%). Core evidence: EPSS rose +1.26% over the last day, indicating growing attacker interest. 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 | 2026-06-15 | 0.50% | 1.76% | +1.26% |
| 2 | 2026-01-02 | 0.63% | 0.50% | -0.13% |
| 3 | 2025-12-28 | — | 0.63% | — |
Full EPSS history (12 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 |
|---|---|---|---|
| digital | ultrix | — | cpe:2.3:o:digital:ultrix:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.20.1 | cpe:2.3:o:linux:linux_kernel:2.6.20.1:*:*:*:*:*:*:* |
| netbsd | netbsd | 2.0.4 | cpe:2.3:o:netbsd:netbsd:2.0.4:*:*:*:*:*:*:* |
| openbsd | openbsd | — | cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:* |
| sun | solaris | — | cpe:2.3:o:sun:solaris:*:*:*:*:*:*:*:* |