CVE-2026-20191
Cisco Catalyst Center Arbitrary File Read Vulnerability
Description
A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device.
INFO
Published Date :
July 1, 2026, 5:16 p.m.
Last Modified :
July 1, 2026, 6:16 p.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 | HIGH | [email protected] |
Solution
- Update Cisco Catalyst Center software.
- Apply vendor-provided patches.
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-2026-20191.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catc-file-read-wLH2vf8X |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20191 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-2026-20191
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-2026-20191 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-20191 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 Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 01, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-20191', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-01T17:18:27.744122Z'} -
New CVE Received by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Cisco', 'product': 'Cisco Catalyst Center', 'versions': [{'status': 'affected', 'version': '2.3.7.0-VA'}, {'status': 'affected', 'version': '2.3.7.5-VA'}, {'status': 'affected', 'version': '2.3.7.6-VA'}, {'status': 'affected', 'version': '2.3.7.7-VA'}, {'status': 'affected', 'version': '2.3.7.9-VA'}, {'status': 'affected', 'version': '3.1.3'}, {'status': 'affected', 'version': '3.1.3-VA'}, {'status': 'affected', 'version': '2.3.7.10-VA'}, {'status': 'affected', 'version': '3.1.5'}, {'status': 'affected', 'version': '3.1.5-VA'}, {'status': 'affected', 'version': '3.1.5-VA on AWS'}, {'status': 'affected', 'version': '3.1.5-RevUp'}, {'status': 'affected', 'version': '3.1.6'}, {'status': 'affected', 'version': '3.1.6-VA'}, {'status': 'affected', 'version': '3.1.6-BETA'}, {'status': 'affected', 'version': '3.1.6-GSMU100'}, {'status': 'affected', 'version': '3.1.6-VA-GSMU100'}], 'defaultStatus': 'unknown'}] Added Description A vulnerability in Cisco Catalyst Center could allow an unauthenticated, remote attacker to read arbitrary files from a restricted container. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to read arbitrary files from a restricted container of the affected device. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-22 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catc-file-read-wLH2vf8X