Status: UPDATED | Advisory ID: CVE-2026-20155
| CVE | CVE-2026-20155 |
| CVSS Score / Version | 8.0 (High) / CVSS v3.1 |
| Updated | 2026-09-24 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is low; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | Cisco Evolved Programmable Network Manager |
| Classified as | CWE-862 (Missing Authorization) |
| Exploitation prediction (EPSS) | 0.27% probability of exploitation in the next 30 days (17% percentile) -- FIRST.org's EPSS model. |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Cisco | Evolved Programmable Network Manager |
| Subsystems | Industrial Network - Routers/Firewalls |
| Sectors | Multiple |
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.
Monitor Cisco's web page for any future patch releases. See vendor advisory link below.