In Puppet Enterprise 2017.1.x and 2017.2.1, using specially formatted strings with certain formatting characters as Classifier node group names or RBAC role display names causes errors, effectively causing a DOS to the service. This was resolved in Puppet Enterprise 2017.2.2.
Conclusion & alert: CVE-2017-2296 is rated Moderate Risk (45.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.90%). 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 | 0.35% | 0.90% | +0.54% |
| 2 | 2025-03-17 | 0.07% | 0.35% | +0.28% |
| 3 | 2023-03-07 | — | 0.07% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.0 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2017-2296 unimportant priority: Debian including 1 source packages (puppet), 1 status rows across 1 suites (bullseye): resolved 1. | https://security-tracker.debian.org/tracker/CVE-2017-2296 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| puppet | puppet_enterprise | 2017.1.0 | cpe:2.3:a:puppet:puppet_enterprise:2017.1.0:*:*:*:*:*:*:* |
| puppet | puppet_enterprise | 2017.1.1 | cpe:2.3:a:puppet:puppet_enterprise:2017.1.1:*:*:*:*:*:*:* |
| puppet | puppet_enterprise | 2017.2.1 | cpe:2.3:a:puppet:puppet_enterprise:2017.2.1:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://puppet.com/security/cve/cve-2017-2296 | Vendor Advisory |