Unauth Remote URL Redirect in Cisco EPNM Web UI
CVE-2026-20123 Published on February 4, 2026

Cisco Prime Infrastructure and Evolved Programmable Network Manager Open Redirect Vulnerability
A vulnerability in the web-based management interface of Cisco Evolved Programmable Network Manager (EPNM) and Cisco Prime Infrastructure could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. This vulnerability is due to improper input validation of the parameters in the HTTP request. An attacker could exploit this vulnerability by intercepting and modifying an HTTP request from a user. A successful exploit could allow the attacker to redirect the user to a malicious web page.

NVD

Vulnerability Analysis

CVE-2026-20123 can be exploited with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality, with no impact on integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
LOW
Availability Impact:
NONE

Weakness Type

What is an Open Redirect Vulnerability?

A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. An http parameter may contain a URL value and could cause the web application to redirect the request to the specified URL. By modifying the URL value to a malicious site, an attacker may successfully launch a phishing scam and steal user credentials. Because the server name in the modified link is identical to the original site, phishing attempts have a more trustworthy appearance.

CVE-2026-20123 has been classified to as an Open Redirect vulnerability or weakness.


Products Associated with CVE-2026-20123

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-20123 are published in these products:

Cisco Evolved Programmable Network Manager
 
Cisco Prime Infrastructure
 

Affected Versions

Cisco Evolved Programmable Network Manager (EPNM): Cisco Prime Infrastructure:

Exploit Probability

EPSS
0.02%
Percentile
5.63%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.