CVE-2025-20188CRITICAL 10.0EPSS p96.8%

CVE-2025-20188CVE-2025-20188

Description

A vulnerability in the Out-of-Band Access Point (AP) Image Download, the Clean Air Spectral Recording, and the client debug bundles features of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, remote attacker to upload arbitrary files to an affected system. This vulnerability is due to the presence of a hard-coded JSON Web Token (JWT) on an affected system. An attacker could exploit this vulnerability by sending crafted HTTPS requests to the AP file upload interface. A successful exploit could allow the attacker to upload files, perform path traversal, and execute arbitrary commands with root privileges.

Scoring

CVSS 3.110.0 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS17.89% probability of exploitation · percentile 96.8% · 2026-06-18T12:00:27Z
Published2025-05-07
Last modified2025-06-23

Underlying weaknesses· 1

CWE-798

References

  1. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-file-uplpd-rHZG9UfC
  2. https://horizon3.ai/attack-research/attack-blogs/cisco-ios-xe-wlc-arbitrary-file-upload-vulnerability-cve-2025-20188-analysis/

1

TypeTargetConfidenceTier
WeaknessUse of Hard-coded Credentialscwe-7980%live

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