CVE-2026-20151CWE-201

Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability

High · published April 1, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
18.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00270 · 18.2th percentile
Weakness
CWE-201 · Insertion of Sensitive Information Into Sent Data
Published
2026-04-01T16:29Z
EPSS history
Timeline
  • 01 APR 16:29Z
    Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability
    cvelistv5