CVE-2019-1743: Cisco IOS XE

High severity, CVSS 8.8. EPSS: 2.2% chance of exploitation in the next 30 days.

A vulnerability in the web UI framework of Cisco IOS XE Software could allow an authenticated, remote attacker to make unauthorized changes to the filesystem of the affected device. The vulnerability is due to improper input validation. An attacker could exploit this vulnerability by crafting a malicious file and uploading it to the device. An exploit could allow the attacker to gain elevated privileges on the affected device.

Affected products

• Cisco IOS XE: version 16.2.1 only; version 16.2.2 only; version 16.3.1 only; version 16.3.1a only; version 16.3.2 only; version 16.3.3 only; …

Published 2019-03-28. Last modified 2026-06-17.