TI-2026-16360 Aliases CVE-2026-20151 GHSA-753x-3fmj-hv4q

Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability

LOW 34CWE-201Published 2026-04-01 · Updated 2026-04-02

Key facts

Attack vector: Network
Privileges required: Low
User interaction: Required
Attack complexity: Low
Impact type: Information disclosure
Confidentiality · integrity · availability: High · High · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-201.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00275 20th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Smart Software Manager On-Prem	7-202001; 8-202004; 8-202006; 8-202012; 8-202010; 8-202008; 9-202201; 8-202102; 8-202105; 8-202108; 8-202112; 8-202201; 8-202206; 8-202212; 8-202302; 8-202303; 8-202304; 8-202308; 8-202401; 8-202404; 9-202406; 9-202407; 9-202410; 9-202412; 9-202501; 9-202502; 9-202504; 9-202507; 9-202510	—	No fix listed	CNA

Cisco Smart Software Manager On-Prem VendorCisco Affected 7-202001; 8-202004; 8-202006; 8-202012; 8-202010; 8-202008; 9-202201; 8-202102; 8-202105; 8-202108; 8-202112; 8-202201; 8-202206; 8-202212; 8-202302; 8-202303; 8-202304; 8-202308; 8-202401; 8-202404; 9-202406; 9-202407; 9-202410; 9-202412; 9-202501; 9-202502; 9-202504; 9-202507; 9-202510 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:smart_software_manager_on-prem::::::::	before 9-202601	Vulnerable	Cisco

cpe:2.3:a:cisco:smart_software_manager_on-prem:*:*:*:*:*:*:*:* Versions before 9-202601 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-20151
2026-10-03 Alias added: GHSA-753x-3fmj-hv4q

References

Advisory 1

cisco-sa-cssm-priv-esc-xRAnOuO8

TI-2024-13352 A vulnerability in the authentication system of Cisco Smart Software Manager On-Prem (SSM… CVSS 3.1CRITICAL 10.0
TI-2020-02720 Cisco Smart Software Manager On-Prem Static Default Credential Vulnerability CVSS 3.1CRITICAL 9.1
TI-2026-16368 Cisco Smart Software Manager On-Prem Arbitrary Command Execution Vulnerability CVSS 3.1CRITICAL 9.8
TI-2019-12064 Cisco Smart Software Manager On-Prem Web Interface Denial of Service Vulnerability CVSS 3.1CRITICAL 9.1
TI-2020-02991 Cisco Smart Software Manager On-Prem Privilege Escalation Vulnerability CVSS 3.1HIGH 8.8
TI-2021-13764 Cisco Smart Software Manager Privilege Escalation Vulnerability CVSS 3.1HIGH 8.8

See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences