Unspecified vulnerability in pt_chmod in SCO UNIX 4.2 and earlier allows local users to gain root access.
Conclusion & alert: CVE-1999-1302 is rated Low Risk (38.3/100): CVSS High severity, with low exploitation likelihood (EPSS 0.35%). 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 | 0.20% | 0.35% | +0.15% |
| 2 | 2026-05-12 | 0.08% | 0.20% | +0.11% |
| 3 | 2025-03-17 | — | 0.08% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sco | open_desktop | 2.0 | cpe:2.3:o:sco:open_desktop:2.0:*:*:*:*:*:*:* |
| sco | open_desktop | 3.0 | cpe:2.3:o:sco:open_desktop:3.0:*:*:*:*:*:*:* |
| sco | open_desktop_lite | 3.0 | cpe:2.3:o:sco:open_desktop_lite:3.0:*:*:*:*:*:*:* |
| sco | openserver_enterprise_system | 3.0 | cpe:2.3:o:sco:openserver_enterprise_system:3.0:*:*:*:*:*:*:* |
| sco | openserver_network_system | 3.0 | cpe:2.3:o:sco:openserver_network_system:3.0:*:*:*:*:*:*:* |
| sco | unix | <= 4.2 | cpe:2.3:o:sco:unix:*:*:*:*:*:*:*:* |
| sco | unix | 3.2 | cpe:2.3:o:sco:unix:3.2:*:*:*:*:*:*:* |
| sco | unix | 4.0 | cpe:2.3:o:sco:unix:4.0:*:*:*:*:*:*:* |
| sco | unix | 4.1 | cpe:2.3:o:sco:unix:4.1:*:*:*:*:*:*:* |