CVE-2026-20151
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
A vulnerability in the web interface of Cisco Smart Software Manager On-Prem (SSM On-Prem) allows an authenticated remote attacker to elevate privileges. The issue stems from improper transmission of sensitive user information, enabling session credential retrieval from status messages.
Risk Assessment
An attacker with low-privileged credentials (System User) can gain administrative access to the system, leading to full compromise of the appliance and potential control over license management and configuration.
Recommendation
Update Cisco Smart Software Manager On-Prem to the latest version per Cisco advisory. Until patched, restrict web interface access to trusted IP addresses only.
Other vulnerabilities in Cisco Smart Software Manager On-Prem
Original NVD description (English source)
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.