CVE-2019-1935: Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data SCP User Default Credentials Vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 83.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2019-08-21 · updated 2026-06-17
Weakness: CWE-798

Description

A vulnerability in Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to log in to the CLI of an affected system by using the SCP User account (scpuser), which has default user credentials. The vulnerability is due to the presence of a documented default account with an undocumented default password and incorrect permission settings for that account. Changing the default password for this account is not enforced during the installation of the product. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the scpuser account. This includes full read and write access to the system's database.

Affected products

Cisco Integrated Management Controller: from 2.2.0.0 through 2.2.0.6; 2.1.0.0
Cisco UCS Director: 6.0.0.0, 6.5.0.0, 6.6.0.0, 6.6.1.0, 6.7(0.0.67265), 6.7.0.0 (+1)
Cisco Ucs Director Express For Big Data: 3.0.0.0, 3.5.0.0, 3.6.0.0, 3.7.0.0, 3.7.1.0

References

Get alerted when CVE-2019-1935 or the next vulnerability affects your stack