Puppet Enterprise (PE) before 2.6.1 does not properly invalidate sessions when the session secret has changed, which allows remote authenticated users to retain access via unspecified vectors.
Conclusion & alert: CVE-2012-5158 is rated Low Risk (28/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). 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 | 0.09% | 0.16% | +0.06% |
| 2 | 2023-03-07 | 1.05% | 0.09% | -0.96% |
| 3 | 2022-02-04 | — | 1.05% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2012-5158 unimportant priority: Debian including 1 source packages (puppet), 1 status rows across 1 suites (bullseye): resolved 1. | https://security-tracker.debian.org/tracker/CVE-2012-5158 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| puppet | puppet_enterprise | <= 2.6.0 | cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:* |
| puppet | puppet_enterprise | 2.0.0 | cpe:2.3:a:puppet:puppet_enterprise:2.0.0:*:*:*:*:*:*:* |
| puppet | puppet_enterprise | 2.5.1 | cpe:2.3:a:puppet:puppet_enterprise:2.5.1:*:*:*:*:*:*:* |
| puppet | puppet_enterprise | 2.5.2 | cpe:2.3:a:puppet:puppet_enterprise:2.5.2:*:*:*:*:*:*:* |
| puppetlabs | puppet | 2.5.0 | cpe:2.3:a:puppetlabs:puppet:2.5.0:-:enterprise:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://puppetlabs.com/security/cve/cve-2012-5158 | Vendor Advisory |