Race condition in the page fault handler (fault.c) for Linux kernel 2.2.x to 2.2.7, 2.4 to 2.4.29, and 2.6 to 2.6.10, when running on multiprocessor machines, allows local users to execute arbitrary code via concurrent threads that share the same virtual memory space and simultaneously request stack expansion.
Conclusion & alert: CVE-2005-0001 is rated Moderate Risk (51.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.66%). 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 | 2026-01-09 | 1.07% | 0.66% | -0.41% |
| 2 | 2025-12-22 | 0.32% | 1.07% | +0.76% |
| 3 | 2025-12-14 | — | 0.32% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.9 | 2.0 | MEDIUM |
|
3.4 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2005-0001 |
ubuntu
|
medium | CVE-2005-0001 medium priority: Ubuntu including 3 source packages (kernel-source-2.4.27, linux-source-2.6.15, linux-source-2.6.17), 12 status rows across 4 suites (dapper, edgy, feisty, upstream): DNE 5, released 4, needs-triage 3. | https://ubuntu.com/security/CVE-2005-0001 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| linux | linux_kernel | 2.2.7 | cpe:2.3:o:linux:linux_kernel:2.2.7:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.0 | cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.1 | cpe:2.3:o:linux:linux_kernel:2.4.1:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.2 | cpe:2.3:o:linux:linux_kernel:2.4.2:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.3 | cpe:2.3:o:linux:linux_kernel:2.4.3:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.4 | cpe:2.3:o:linux:linux_kernel:2.4.4:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.5 | cpe:2.3:o:linux:linux_kernel:2.4.5:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.6 | cpe:2.3:o:linux:linux_kernel:2.4.6:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.7 | cpe:2.3:o:linux:linux_kernel:2.4.7:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.8 | cpe:2.3:o:linux:linux_kernel:2.4.8:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.9 | cpe:2.3:o:linux:linux_kernel:2.4.9:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.10 | cpe:2.3:o:linux:linux_kernel:2.4.10:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.11 | cpe:2.3:o:linux:linux_kernel:2.4.11:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.12 | cpe:2.3:o:linux:linux_kernel:2.4.12:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.13 | cpe:2.3:o:linux:linux_kernel:2.4.13:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.14 | cpe:2.3:o:linux:linux_kernel:2.4.14:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.15 | cpe:2.3:o:linux:linux_kernel:2.4.15:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.16 | cpe:2.3:o:linux:linux_kernel:2.4.16:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.17 | cpe:2.3:o:linux:linux_kernel:2.4.17:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.18 | cpe:2.3:o:linux:linux_kernel:2.4.18:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.19 | cpe:2.3:o:linux:linux_kernel:2.4.19:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.20 | cpe:2.3:o:linux:linux_kernel:2.4.20:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.21 | cpe:2.3:o:linux:linux_kernel:2.4.21:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.22 | cpe:2.3:o:linux:linux_kernel:2.4.22:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.23 | cpe:2.3:o:linux:linux_kernel:2.4.23:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.24 | cpe:2.3:o:linux:linux_kernel:2.4.24:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.25 | cpe:2.3:o:linux:linux_kernel:2.4.25:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.26 | cpe:2.3:o:linux:linux_kernel:2.4.26:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.27 | cpe:2.3:o:linux:linux_kernel:2.4.27:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.28 | cpe:2.3:o:linux:linux_kernel:2.4.28:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.4.29 | cpe:2.3:o:linux:linux_kernel:2.4.29:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.0 | cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.1 | cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.2 | cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.3 | cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.4 | cpe:2.3:o:linux:linux_kernel:2.6.4:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.5 | cpe:2.3:o:linux:linux_kernel:2.6.5:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.6 | cpe:2.3:o:linux:linux_kernel:2.6.6:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.7 | cpe:2.3:o:linux:linux_kernel:2.6.7:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.8 | cpe:2.3:o:linux:linux_kernel:2.6.8:*:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.9 | cpe:2.3:o:linux:linux_kernel:2.6.9:2.6.20:*:*:*:*:*:* |
| linux | linux_kernel | 2.6.10 | cpe:2.3:o:linux:linux_kernel:2.6.10:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 3.0 | cpe:2.3:o:redhat:enterprise_linux:3.0:*:advanced_server:*:*:*:*:* |
| redhat | enterprise_linux | 3.0 | cpe:2.3:o:redhat:enterprise_linux:3.0:*:enterprise_server:*:*:*:*:* |
| redhat | enterprise_linux | 3.0 | cpe:2.3:o:redhat:enterprise_linux:3.0:*:workstation_server:*:*:*:*:* |
| redhat | enterprise_linux | 4.0 | cpe:2.3:o:redhat:enterprise_linux:4.0:*:advanced_server:*:*:*:*:* |
| redhat | enterprise_linux | 4.0 | cpe:2.3:o:redhat:enterprise_linux:4.0:*:enterprise_server:*:*:*:*:* |
| redhat | enterprise_linux | 4.0 | cpe:2.3:o:redhat:enterprise_linux:4.0:*:workstation:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 3.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:3.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 4.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:* |
| trustix | secure_linux | 2 | cpe:2.3:o:trustix:secure_linux:2:*:*:*:*:*:*:* |
| trustix | secure_linux | 2.1 | cpe:2.3:o:trustix:secure_linux:2.1:*:*:*:*:*:*:* |
| trustix | secure_linux | 2.2 | cpe:2.3:o:trustix:secure_linux:2.2:*:*:*:*:*:*:* |