A vulnerability in the restricted security domain implementation of Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to read, modify, or delete non-tenant policies (for example, access policies) created by users associated with a different security domain on an affected system. This vulnerability is due to improper access control when restricted security domains are used to implement multi-tenancy for policies outside the tenant boundaries. An attacker with a valid user account associated with a restricted security domain could exploit this vulnerability. A successful exploit could allow the attacker to read, modify, or delete policies created by users associated with a different security domain. Exploitation is not possible for policies under tenants that an attacker has no authorization to access.
Conclusion & alert: CVE-2023-20230 is rated Low Risk (30.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.33%). 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 | 2026-06-15 | 0.19% | 0.33% | +0.15% |
| 2 | 2025-11-21 | 0.12% | 0.19% | +0.07% |
| 3 | 2025-11-18 | — | 0.12% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.4 | 3.1 | MEDIUM |
|
2.8 | 2.5 | [email protected] |
| 5.4 | 3.1 | MEDIUM |
|
2.8 | 2.5 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | application_policy_infrastructure_controller | >= 5.2, < 5.2\(8d\) | cpe:2.3:a:cisco:application_policy_infrastructure_controller:*:*:*:*:*:*:*:* |
| cisco | application_policy_infrastructure_controller | >= 6.0, < 6.0\(3d\) | cpe:2.3:a:cisco:application_policy_infrastructure_controller:*:*:*:*:*:*:*:* |