CVE-2023-20273

HIGH7.2

CISA KEV

Published 2023-10-25 · Updated 2026-06-17 · Source psirt@cisco.com

Summary

CVE-2023-20273 is a high-severity (CVSS 7.2) vulnerability in Cisco Cisco IOS XE Web UI. CISA added it to the Known Exploited Vulnerabilities catalog on October 23, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by October 27, 2023. CISA does not currently list it as used in ransomware campaigns. Cisco has 102 vulnerabilities in the KEV catalog, 7 of them linked to ransomware.

All 102 known-exploited Cisco vulnerabilities →

Description

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.

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

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: Cisco — Cisco IOS XE Web UI

Name: Cisco IOS XE Web UI Command Injection Vulnerability

Date added: 2023-10-23 · Due: 2023-10-27

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.

References

View on NVD

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