Privilege escalation in Cisco iOS Xe Software

CVE-2026-20308

A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to perform a denial of service (DoS) attack against an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted input to the web-based management interface of an affected device. A successful exploit could allow the attacker to cause the web-based management interface to become unresponsive.

Vulnerability class: Privilege Escalation

EPSS: 0.003 (25.2th percentile) — read the EPSS interpretation.