CVE-2026-20155
Cisco Evolved Programmable Network Manager Improper Authorization Vulnerability
Description
A vulnerability in the web-based management interface of Cisco Evolved Programmable Network Manager (EPNM) could allow an authenticated, remote attacker with low privileges to access sensitive information that they are not authorized to access. This vulnerability is due to improper authorization checks on a REST API endpoint of an affected device. An attacker could exploit this vulnerability by querying the affected endpoint. A successful exploit could allow the attacker to view session information of active Cisco EPNM users, including users with administrative privileges, which could result in the affected device being compromised.
Weakness: CWE-862
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Evolved Programmable Network Manager | Network & Security Management | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Evolved Programmable Network Manager (EPNM)
Vendor advisory
cisco-sa-epnm-improp-auth-mUwFWUU3
Cisco Evolved Programmable Network Manager Improper Authorization Vulnerability
Cisco’s rating: High (advisory CVSS 8.0) · Published Apr 1, 2026
Bug ID: CSCwp27059
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from