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CVE-2023-20273

7.2
HIGHCVSS v3.1 Base Score
92.65%
HIGH RiskEPSS (100th percentile)
KEV

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands with the privileges of root. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web UI. A successful exploit could allow the attacker to inject commands to the underlying operating system with root privileges.

Published: 10/25/2023
Modified: 10/28/2025
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Cisco IOS XE Web UI Command Injection Vulnerability

Vendor / Product:

Cisco Cisco IOS XE Web UI

Required Action:

Verify that instances of Cisco IOS XE Web UI are in compliance with BOD 23-02 and apply mitigations per vendor instructions. For affected products (Cisco IOS XE Web UI exposed to the internet or to untrusted networks), follow vendor instructions to determine if a system may have been compromised and immediately report positive findings to CISA.

Due Date: 10/27/2023(OVERDUE)
Added to KEV:

10/23/2023

Notes:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-webui-privesc-j22SaA4z; https://nvd.nist.gov/vuln/detail/CVE-2023-20273

Vulnerability Summary

CVSS v3 Score

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Score (Exploitation Probability)

92.65%HIGH Exploitation Risk
100th percentile

This vulnerability has a 92.65% probability of being exploited in the next 30 days, ranking higher than 100% of all scored CVEs.

CWE Classification

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Similar SeverityHIGH