A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device and then execute those files on the underlying operating system as root. This vulnerability is due a lack of file validation checks that would prevent uploaded files from being placed in privileged directories on an affected system. An attacker could exploit this vulnerability by uploading a crafted file to the affected device. A successful exploit could allow the attacker to store malicious files on the affected system and then execute arbitrary code or obtain root privileges on the system.
Conclusion & alert: CVE-2025-20282 is rated Moderate Risk (64.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.59%). 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 | 2026-04-21 | 0.29% | 0.59% | +0.30% |
| 2 | 2026-03-11 | 0.16% | 0.29% | +0.13% |
| 3 | 2026-01-19 | — | 0.16% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 10.0 | 3.1 | CRITICAL |
|
3.9 | 6.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | identity_services_engine | 3.4.0 | cpe:2.3:a:cisco:identity_services_engine:3.4.0:-:*:*:*:*:*:* |
| cisco | identity_services_engine | 3.4.0 | cpe:2.3:a:cisco:identity_services_engine:3.4.0:patch1:*:*:*:*:*:* |
| cisco | identity_services_engine_passive_identity_connector | 3.4.0 | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:-:*:*:*:*:*:* |
| cisco | identity_services_engine_passive_identity_connector | 3.4.0 | cpe:2.3:a:cisco:identity_services_engine_passive_identity_connector:3.4.0:patch1:*:*:*:*:*:* |