CVE-2025-20293
"Cisco Catalyst 9800 Wireless Controller PKI Server Authentication Bypass"
Description
A vulnerability in the Day One setup process of Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers for Cloud (9800-CL) could allow an unauthenticated, remote attacker to access the public-key infrastructure (PKI) server that is running on an affected device. This vulnerability is due to incomplete cleanup upon completion of the Day One setup process. An attacker could exploit this vulnerability by sending Simple Certificate Enrollment Protocol (SCEP) requests to an affected device. A successful exploit could allow the attacker to request a certificate from the virtual wireless controller and then use the acquired certificate to join an attacker-controlled device to the virtual wireless controller.
INFO
Published Date :
Sept. 24, 2025, 6:15 p.m.
Last Modified :
Sept. 26, 2026, 12:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Consult Cisco security advisory for affected software versions.
- Apply recommended software updates or patches.
- Verify Day One setup cleanup is complete.
- Monitor for unauthorized certificate requests.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-20293.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-9800cl-openscep-SB4xtxzP |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-20293 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-20293
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-20293 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-20293 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Sep. 26, 2026
Action Type Old Value New Value Added Translation Title: Cisco IOS XE Software para Catalyst 9800 Series Wireless Controllers para Cloud de Cisco, Description: Una vulnerabilidad en el proceso de configuración inicial (“Day One setup”) de Cisco IOS XE Software para los controladores inalámbricos Catalyst de la serie 9800 para la nube (9800-CL) podría permitir a un atacante remoto no autenticado acceder al servidor de infraestructura de clave pública (PKI) que se ejecuta en un dispositivo afectado. Esta vulnerabilidad se debe a una limpieza incompleta al finalizar el proceso de configuración inicial. Un atacante podría explotar esta vulnerabilidad enviando solicitudes del protocolo de inscripción de certificados simple (SCEP) a un dispositivo afectado. Un exploit exitoso podría permitir al atacante solicitar un certificado del controlador inalámbrico virtual y luego usar el certificado adquirido para unir un dispositivo controlado por el atacante al controlador inalámbrico virtual. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Cisco', 'product': 'Cisco IOS XE Software', 'versions': [{'status': 'affected', 'version': '16.10.1'}, {'status': 'affected', 'version': '16.10.1s'}, {'status': 'affected', 'version': '16.10.1e'}, {'status': 'affected', 'version': '16.11.1'}, {'status': 'affected', 'version': '16.11.1a'}, {'status': 'affected', 'version': '16.11.1b'}, {'status': 'affected', 'version': '16.12.1'}, {'status': 'affected', 'version': '16.12.1s'}, {'status': 'affected', 'version': '16.12.3'}, {'status': 'affected', 'version': '16.12.8'}, {'status': 'affected', 'version': '16.12.2s'}, {'status': 'affected', 'version': '16.12.1t'}, {'status': 'affected', 'version': '16.12.4'}, {'status': 'affected', 'version': '16.12.3s'}, {'status': 'affected', 'version': '16.12.4a'}, {'status': 'affected', 'version': '16.12.5'}, {'status': 'affected', 'version': '16.12.6'}, {'status': 'affected', 'version': '16.12.6a'}, {'status': 'affected', 'version': '16.12.7'}, {'status': 'affected', 'version': '17.1.1'}, {'status': 'affected', 'version': '17.1.1s'}, {'status': 'affected', 'version': '17.1.1t'}, {'status': 'affected', 'version': '17.1.3'}, {'status': 'affected', 'version': '17.2.1'}, {'status': 'affected', 'version': '17.2.1a'}, {'status': 'affected', 'version': '17.3.1'}, {'status': 'affected', 'version': '17.3.2'}, {'status': 'affected', 'version': '17.3.3'}, {'status': 'affected', 'version': '17.3.2a'}, {'status': 'affected', 'version': '17.3.4'}, {'status': 'affected', 'version': '17.3.5'}, {'status': 'affected', 'version': '17.3.6'}, {'status': 'affected', 'version': '17.3.4c'}, {'status': 'affected', 'version': '17.3.5a'}, {'status': 'affected', 'version': '17.3.5b'}, {'status': 'affected', 'version': '17.3.7'}, {'status': 'affected', 'version': '17.3.8'}, {'status': 'affected', 'version': '17.3.8a'}, {'status': 'affected', 'version': '17.4.1'}, {'status': 'affected', 'version': '17.5.1'}, {'status': 'affected', 'version': '17.6.1'}, {'status': 'affected', 'version': '17.6.2'}, {'status': 'affected', 'version': '17.6.3'}, {'status': 'affected', 'version': '17.6.4'}, {'status': 'affected', 'version': '17.6.5'}, {'status': 'affected', 'version': '17.6.6'}, {'status': 'affected', 'version': '17.6.6a'}, {'status': 'affected', 'version': '17.6.5a'}, {'status': 'affected', 'version': '17.6.7'}, {'status': 'affected', 'version': '17.6.8'}, {'status': 'affected', 'version': '17.7.1'}, {'status': 'affected', 'version': '17.10.1'}, {'status': 'affected', 'version': '17.8.1'}, {'status': 'affected', 'version': '17.9.1'}, {'status': 'affected', 'version': '17.9.2'}, {'status': 'affected', 'version': '17.9.3'}, {'status': 'affected', 'version': '17.9.4'}, {'status': 'affected', 'version': '17.9.4a'}, {'status': 'affected', 'version': '17.11.1'}, {'status': 'affected', 'version': '17.12.1'}, {'status': 'affected', 'version': '17.12.2'}, {'status': 'affected', 'version': '17.13.1'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-20293', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-09-24T17:31:16.493161Z'} -
New CVE Received by [email protected]
Sep. 24, 2025
Action Type Old Value New Value Added Description A vulnerability in the Day One setup process of Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers for Cloud (9800-CL) could allow an unauthenticated, remote attacker to access the public-key infrastructure (PKI) server that is running on an affected device. This vulnerability is due to incomplete cleanup upon completion of the Day One setup process. An attacker could exploit this vulnerability by sending Simple Certificate Enrollment Protocol (SCEP) requests to an affected device. A successful exploit could allow the attacker to request a certificate from the virtual wireless controller and then use the acquired certificate to join an attacker-controlled device to the virtual wireless controller. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Added CWE CWE-459 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-9800cl-openscep-SB4xtxzP