# CVE-2025-20337

## Summary

- **CVE ID:** CVE-2025-20337
- **Severity:** CRITICAL
- **CVSS Score:** 10 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
- **CWE:** CWE-74
- **Published:** Jul 16, 2025
- **Last Modified:** Feb 26, 2026

## Description

A vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to execute arbitrary code on the underlying operating system as root. The attacker does not require any valid credentials to exploit this vulnerability.

This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to obtain root privileges on an affected device.

## Affected Products

- Cisco — Cisco Identity Services Engine Software (3.3.0)
- Cisco — Cisco Identity Services Engine Software (3.3 Patch 2)
- Cisco — Cisco Identity Services Engine Software (3.3 Patch 1)
- Cisco — Cisco Identity Services Engine Software (3.3 Patch 3)
- Cisco — Cisco Identity Services Engine Software (3.4.0)
- Cisco — Cisco Identity Services Engine Software (3.3 Patch 4)
- Cisco — Cisco Identity Services Engine Software (3.4 Patch 1)
- Cisco — Cisco Identity Services Engine Software (3.3 Patch 5)
- Cisco — Cisco Identity Services Engine Software (3.3 Patch 6)
- Cisco — Cisco ISE Passive Identity Connector (3.2.0)
- Cisco — Cisco ISE Passive Identity Connector (3.1.0)
- Cisco — Cisco ISE Passive Identity Connector (3.3.0)
- Cisco — Cisco ISE Passive Identity Connector (3.4.0)

## References

- [CNA](https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-unauth-rce-ZAd2GnJ6)
- [CISA-ADP](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-20337)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 67.04%
- **EPSS Percentile:** 99.2

## Known Exploited Vulnerabilities (KEV)

- **Date Added:** Jul 28, 2025
- **Due Date:** Aug 18, 2025

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._