The Java-based software in Cisco Hosted Collaboration Solution (HCS) allows remote attackers to cause a denial of service (closing of TCP ports) via unspecified vectors, aka Bug IDs CSCug77633, CSCug77667, CSCug78266, CSCug82795, and CSCuh58643.
Conclusion & alert: CVE-2014-2121 is rated Moderate Risk (52.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.96%). Core evidence: EPSS rose +2.21% over the last day, indicating growing attacker interest. 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 | 0.76% | 2.96% | +2.21% |
| 2 | 2025-03-23 | 0.71% | 0.76% | +0.05% |
| 3 | 2025-03-17 | — | 0.71% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | hosted_collaboration_solution | — | cpe:2.3:a:cisco:hosted_collaboration_solution:-:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-2121 | Vendor Advisory |
| http://www.securityfocus.com/bid/66283 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1029933 | Third Party Advisory VDB Entry |