Fcron 2.0.1, 2.9.4, and possibly earlier versions leak file descriptors of open files, which allows local users to bypass access restrictions and read fcron.allow and fcron.deny via the EDITOR environment variable.
Conclusion & alert: CVE-2004-1033 is rated Low Risk (18.5/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.36%). Mandatory action: Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.
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 | 0.07% | 0.36% | +0.29% |
| 2 | 2025-03-17 | 0.04% | 0.07% | +0.03% |
| 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 |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2004-1033 medium priority: Ubuntu including 1 source packages (fcron), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2004-1033 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| thibault_godouet | fcron | 2.0.1 | cpe:2.3:a:thibault_godouet:fcron:2.0.1:*:*:*:*:*:*:* |
| thibault_godouet | fcron | 2.9.4 | cpe:2.3:a:thibault_godouet:fcron:2.9.4:*:*:*:*:*:*:* |
| gentoo | linux | — | cpe:2.3:o:gentoo:linux:*:*:*:*:*:*:*:* |