EN

CVE-2025-20188

Critical
10.0
0.05.010.0
Year
2025
Published
May 7, 2025
Known Affected Devices
0
CVSS Score
10.0

What is CVE-2025-20188?

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.

CVSS Vector Breakdown

CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV
Attack Vector
Network

Exploitable remotely over the network without requiring access to the local system.

AC
Attack Complexity
Low

No special conditions required. Exploit can be performed reliably and repeatedly.

PR
Privileges Required
None

No authentication required. Any anonymous user can exploit this vulnerability.

UI
User Interaction
None

No user interaction required. Exploit runs without any victim action.

S
Scope
Changed

Exploiting the vulnerability can affect other components beyond the vulnerable one.

C
Confidentiality Impact
High

Complete loss of confidentiality. All data on the component may be exposed.

I
Integrity Impact
High

Complete loss of integrity. Attacker can modify any file or data on the component.

A
Availability Impact
High

Complete denial of service. The component becomes fully unavailable.

Known Affected Devices

Cisco Cisco ISR 4451 Cisco Cisco ISR 4461 Cisco Cisco ISR 927 Cisco Cisco ISR 931 Cisco Cisco ISR 951 Cisco Cisco ASR 1001-HX Cisco Cisco ASR 1002-X Cisco Cisco ASR 1006-X Cisco Cisco ASR 1009-X Cisco Cisco Catalyst 2960-24TC-L Cisco Cisco Catalyst 3650-24PS-L Cisco Cisco Catalyst 3650-48TS-L Cisco Cisco Catalyst 9200-24P Cisco Cisco Catalyst 9200-24T Cisco Cisco Catalyst 9200L-24P-4X Cisco Cisco Catalyst 9200L-48P-4X Cisco Cisco Catalyst 9300-24T Cisco Cisco Catalyst 9300-24U Cisco Cisco Catalyst 9300-48T Cisco Cisco Catalyst 9300-48U Cisco Cisco Catalyst 9300L-48P-4G Cisco Cisco Catalyst 9300L-48T-4G Cisco Cisco Catalyst 9404R Cisco Cisco Catalyst 9500-12Q Cisco Cisco Catalyst 9500-24Y4C Cisco Cisco Catalyst 9500-32C Cisco Cisco Catalyst 9500-40X Cisco Cisco Nexus 9504 Cisco Cisco Aironet 1815M Cisco Cisco Aironet 3802I Cisco Cisco Catalyst 9115AXE Cisco Cisco Catalyst 9120AXI Cisco Cisco Catalyst 9130AXI Cisco Cisco Catalyst 9800-40 Cisco Cisco Catalyst 9800-L-C Cisco Cisco Catalyst 9800-L-F Cisco Cisco Catalyst 9800-CL

FAQ

How severe is CVE-2025-20188?

CVE-2025-20188 has a CVSS score of 10.0/10, rated as Critical. This is the highest severity level - immediate patching is strongly recommended.

What does the CVSS score mean for CVE-2025-20188?

CVSS (Common Vulnerability Scoring System) rates vulnerability severity from 0.0 to 10.0. CVE-2025-20188 scores 10.0/10 (Critical). Scores 9.0–10.0 are Critical, 7.0–8.9 are High, 4.0–6.9 are Medium, and below 4.0 are Low.

Which devices are affected by CVE-2025-20188?

The list of devices confirmed to be affected by CVE-2025-20188 is shown in the "Affected Devices" section above. Check your firmware version against the vendor security advisory and apply the latest patch.

How do I fix or mitigate CVE-2025-20188?

Apply the latest firmware or software update from the vendor. Check the References section above for official advisories and patch notes. If no patch is available, consider disabling the affected feature or isolating the device from untrusted networks.