CVE-2025-20196

A vulnerability in the Cisco IOx application hosting environment of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Cisco IOx application host

Severity
Medium 5.3
CVSS 3.1
Exploited
Not listed
EPSS
0.004
31.8th percentile
Discovered by
Vendor
Published by the vendor
Published
May 7, 2025
Assigned by cisco

Description

A vulnerability in the Cisco IOx application hosting environment of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the Cisco IOx application hosting environment to stop responding, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to cause the Cisco IOx application hosting environment to stop responding. The IOx process will need to be manually restarted to recover services.

Weakness: CWE-307

Affected products

Vendor Product Category Matched by
Cisco Cisco IOS Software Routing & Switching cna-assigner
Cisco Cisco IOS XE Software Routing & Switching cna-assigner
Vendor-reported affected versions (2)
  • Cisco · IOS
  • Cisco · Cisco IOS XE Software