CVE-2026-20123 Cisco Prime Infrastructure and Evolved Programmable Network Manager Open Redirect Vulnerability
An unauthenticated remote attacker can redirect users to malicious web pages via improper input validation in Cisco network management interfaces.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-20123?
CVE-2026-20123 is a medium-severity vulnerability in Cisco Evolved Programmable Network Manager, published on 4 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-601
Which versions are affected by CVE-2026-20123?
It affects 2 products.
Products include Cisco Evolved Programmable Network Manager, Cisco Prime Infrastructure.
How do I fix CVE-2026-20123?
No fix has been published for CVE-2026-20123 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20123 being exploited?
There is no known exploitation of CVE-2026-20123 in the wild and no public exploit code.
Other vulnerabilities in Cisco Evolved Programmable Network Manager
- CVE-2016-1289 Code injection in n/a
- CVE-2016-1291 Deserialization in n/a
- CVE-2021-1487 Cisco Prime Infrastructure and Cisco Evolved Programmable Network Manager Command Injection Vulnerability
- CVE-2019-1821 Cisco Prime Infrastructure and Evolved Programmable Network Manager Remote Code Execution Vulnerabilities
- CVE-2019-1822 Cisco Prime Infrastructure and Evolved Programmable Network Manager Remote Code Execution Vulnerabilities
All Cisco Evolved Programmable Network Manager vulnerabilities
Sources
Also known as GHSA-8vw9-4phq-rr32.