Cisco Smart Software Manager On-Prem Improper Access Control Vulnerability

published 2020-06-18 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-24516

cvss: 5.3; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits: 0; none known

A vulnerability in the web application of Cisco Smart Software Manager On-Prem (SSM On-Prem) could allow an unauthenticated, remote attacker to create arbitrary user accounts. The vulnerability is due to the lack of authorization controls in the web application. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to add user accounts to the configuration of an affected device. These accounts would not be administrator or operator accounts.

Patch / fix

fixed in 1

cisco smart_software_manager_on-prem 8-202004

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 23 mo ago (2024-11-15)

Exploit prediction

1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

Cisco Cisco Smart Software Manager On-Prem

Classification

Weakness

CWE-284 Improper Access Control
CWE-862 Missing Authorization

References

tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-on-prem-access-ctrl-fpQRfdpf
vendor-advisory

Sources

CVE List CVE-2020-3245
NVD CVE-2020-3245

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Summary