Zenoss Core through 5 Beta 3 does not properly implement the Check For Updates feature, which allows remote attackers to execute arbitrary code by (1) spoofing the callhome server or (2) deploying a crafted web site that is visited during a login session, aka ZEN-12657.
Conclusion & alert: CVE-2014-6261 is rated High Risk (76.2/100): CVSS Critical severity, with high exploitation likelihood (EPSS 19.68%, 97th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +16.69% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2.99% | 19.68% | +16.69% |
| 2 | 2025-10-20 | 1.86% | 2.99% | +1.13% |
| 3 | 2025-06-08 | — | 1.86% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
Addressed in 5.1.2
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| zenoss | zenoss_core | <= 5.0.0 | cpe:2.3:a:zenoss:zenoss_core:*:beta_3:*:*:*:*:*:* |
| zenoss | zenoss_core | 2.4.0 | cpe:2.3:a:zenoss:zenoss_core:2.4.0:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 2.4.5 | cpe:2.3:a:zenoss:zenoss_core:2.4.5:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 2.5.0 | cpe:2.3:a:zenoss:zenoss_core:2.5.0:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 2.5.1 | cpe:2.3:a:zenoss:zenoss_core:2.5.1:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 2.5.2 | cpe:2.3:a:zenoss:zenoss_core:2.5.2:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 3.0.0 | cpe:2.3:a:zenoss:zenoss_core:3.0.0:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 3.0.1 | cpe:2.3:a:zenoss:zenoss_core:3.0.1:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 3.0.2 | cpe:2.3:a:zenoss:zenoss_core:3.0.2:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 3.0.3 | cpe:2.3:a:zenoss:zenoss_core:3.0.3:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 3.1.0 | cpe:2.3:a:zenoss:zenoss_core:3.1.0:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 3.2.0 | cpe:2.3:a:zenoss:zenoss_core:3.2.0:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 3.2.1 | cpe:2.3:a:zenoss:zenoss_core:3.2.1:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 4.2.0 | cpe:2.3:a:zenoss:zenoss_core:4.2.0:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 4.2.3 | cpe:2.3:a:zenoss:zenoss_core:4.2.3:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 4.2.4 | cpe:2.3:a:zenoss:zenoss_core:4.2.4:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 4.2.5 | cpe:2.3:a:zenoss:zenoss_core:4.2.5:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 5.0.0 | cpe:2.3:a:zenoss:zenoss_core:5.0.0:*:*:*:*:*:*:* |
| zenoss | zenoss_core | 5.0.0 | cpe:2.3:a:zenoss:zenoss_core:5.0.0:beta_1:*:*:*:*:*:* |
| zenoss | zenoss_core | 5.0.0 | cpe:2.3:a:zenoss:zenoss_core:5.0.0:beta_2:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://www.kb.cert.org/vuls/id/449452 | Third Party Advisory US Government Resource |
| https://docs.google.com/spreadsheets/d/1dHAc4PxUbs-4Dxzm1wSCE0sMz5UCMY6SW3PlMHSyuuQ/edit?usp=sharing | Vendor Advisory |