pioctls in OpenAFS 1.6.x before 1.6.13 allows local users to read kernel memory via crafted commands.
Conclusion & alert: CVE-2015-3284 is rated Low Risk (19.1/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.38%). 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 | 0.14% | 0.38% | +0.24% |
| 2 | 2025-03-17 | 0.04% | 0.14% | +0.10% |
| 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 |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-3284 not yet assigned priority: Debian including 1 source packages (openafs), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2015-3284 |
ubuntu
|
medium | CVE-2015-3284 medium priority: Ubuntu including 1 source packages (openafs), 5 status rows across 5 suites (precise, trusty, upstream, vivid, wily): released 3, ignored 1, not-affected 1. | https://ubuntu.com/security/CVE-2015-3284 |