The high-availability service in the Fabric Interconnect component in Cisco Unified Computing System (UCS) does not properly bind the cluster service to the management interface, which allows remote attackers to obtain sensitive information or cause a denial of service (peer-syncing outage) via a TELNET connection, aka Bug ID CSCtz72910.
Conclusion & alert: CVE-2012-4136 is rated Moderate Risk (49.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.16%). 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 | 0.43% | 1.16% | +0.73% |
| 2 | 2025-03-30 | 0.47% | 0.43% | -0.04% |
| 3 | 2025-03-29 | — | 0.47% | — |
Full EPSS history (5 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | unified_computing_system | — | cpe:2.3:h:cisco:unified_computing_system:-:*:*:*:*:*:*:* |