Buffer overflow in su in Tru64 Unix 5.x allows local users to gain root privileges via a long username and argument.
Conclusion & alert: CVE-2002-0816 is rated Moderate Risk (40.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.44%). 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 | 0.83% | 0.44% | -0.39% |
| 2 | 2025-12-03 | 0.07% | 0.83% | +0.76% |
| 3 | 2024-12-17 | — | 0.07% | — |
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 |
|---|---|---|---|
| compaq | tru64 | 4.0f | cpe:2.3:o:compaq:tru64:4.0f:*:*:*:*:*:*:* |
| compaq | tru64 | 4.0g | cpe:2.3:o:compaq:tru64:4.0g:*:*:*:*:*:*:* |
| compaq | tru64 | 5.0 | cpe:2.3:o:compaq:tru64:5.0:*:*:*:*:*:*:* |
| compaq | tru64 | 5.0a | cpe:2.3:o:compaq:tru64:5.0a:*:*:*:*:*:*:* |
| compaq | tru64 | 5.1 | cpe:2.3:o:compaq:tru64:5.1:*:*:*:*:*:*:* |
| compaq | tru64 | 5.1a | cpe:2.3:o:compaq:tru64:5.1a:*:*:*:*:*:*:* |