CVE-2025-20315

HIGH

Cisco IOS XE Software - Unauthenticated Denial of Service via Malformed CAPWAP Packet Handling

Title source: llm
STIX 2.1

Description

A vulnerability in the Network-Based Application Recognition (NBAR) feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, causing a denial of service (DoS) condition. This vulnerability is due to improper handling of malformed Control and Provisioning of Wireless Access Points (CAPWAP) packets. An attacker could exploit this vulnerability by sending malformed CAPWAP packets through an affected device. A successful exploit could allow the attacker to cause the device to reload unexpectedly, resulting in a DoS condition.

Scores

CVSS v3 8.6
EPSS 0.0014
EPSS Percentile 33.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-805
Status published
Products (50)
Cisco/Cisco IOS XE Software 16.1.1
Cisco/Cisco IOS XE Software 16.1.2
Cisco/Cisco IOS XE Software 16.1.3
Cisco/Cisco IOS XE Software 16.10.1
Cisco/Cisco IOS XE Software 16.10.1a
Cisco/Cisco IOS XE Software 16.10.1b
Cisco/Cisco IOS XE Software 16.10.1c
Cisco/Cisco IOS XE Software 16.10.1d
Cisco/Cisco IOS XE Software 16.10.1e
Cisco/Cisco IOS XE Software 16.10.1f
... and 40 more
Published Sep 24, 2025
Tracked Since Feb 18, 2026