Status: UPDATED | Advisory ID: CVE-2026-20151
| CVE | CVE-2026-20151 |
| CVSS Score / Version | 7.3 (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:N |
| 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 none. |
| Affected products | Cisco Smart Software Manager On-Prem |
| Classified as | CWE-201 (Insertion of Sensitive Information Into Sent Data) |
| 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 | Smart Software Manager On-Prem |
| Subsystems | Industrial Network - Routers/Firewalls |
| Sectors | Multiple |
A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an authenticated, remote attacker to elevate privileges on an affected system.
This vulnerability is due to the improper transmission of sensitive user information. An attacker could exploit this vulnerability by sending a crafted message to an affected Cisco SSM On-Prem host and retrieving session credentials from subsequent status messages. A successful exploit could allow the attacker to elevate privileges on the affected system from low to administrative.
To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of System User.
Note: This vulnerability exposes information only about users who logged in to the Cisco SSM On-Prem host using the web interface and who are currently logged in. SSH sessions are not affected.
Monitor Cisco's web page for any future patch releases. See vendor advisory link below.