Vulnerability in the MIT-SHM extension of the X server on Linux (XFree86) 4.2.1 and earlier allows local users to read and write arbitrary shared memory, possibly to cause a denial of service or gain privileges.
Conclusion & alert: CVE-2002-0164 is rated Low Risk (25.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). 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 | 2025-03-17 | 0.04% | 0.08% | +0.04% |
| 2 | 2023-03-07 | 1.28% | 0.04% | -1.24% |
| 3 | 2022-02-04 | — | 1.28% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.6 | 2.0 | MEDIUM |
|
3.9 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2002-0164 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| caldera | openlinux_server | 3.1 | cpe:2.3:a:caldera:openlinux_server:3.1:*:*:*:*:*:*:* |
| caldera | openlinux_server | 3.1.1 | cpe:2.3:a:caldera:openlinux_server:3.1.1:*:*:*:*:*:*:* |
| caldera | openlinux_workstation | 3.1 | cpe:2.3:a:caldera:openlinux_workstation:3.1:*:*:*:*:*:*:* |
| caldera | openlinux_workstation | 3.1.1 | cpe:2.3:a:caldera:openlinux_workstation:3.1.1:*:*:*:*:*:*:* |