Input validation error in Cisco Data Center Network Manager - CVE-2021-1255
Published: January 20, 2021 / Updated: January 21, 2021
Vulnerability identifier: #VU49888
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1255
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass security controls on the system.
The vulnerability exists due to an incorrect comparison in a denylist implementation. A remote authenticated attacker can send specially crafted network traffic and modify server configuration settings on the affected device.
Affected software
Cisco Data Center Network Manager
How to mitigate CVE-2021-1255
Install updates from vendor's website.
Cisco Data Center Network Manager - update to 11.4.1