#VU123291 Buffer Access with Incorrect Length Value in Cisco UCS Manager and Cisco NX-OS - CVE-2026-20010

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Main Vulnerability Database Vulnerabilities #VU123291

#VU123291 Buffer Access with Incorrect Length Value in Cisco UCS Manager and Cisco NX-OS - CVE-2026-20010

Published: February 26, 2026


Vulnerability identifier: #VU123291
Vulnerability risk:
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:U
CVE-ID: CVE-2026-20010
CWE-ID: CWE-805
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco UCS Manager
Cisco NX-OS
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to a boundary error in the Link Layer Discovery Protocol (LLDP) feature. A remote attacker can send a specially crafted LLDP packet to an interface and perform a denial of service attack.


Remediation

Install updates from vendor's website.

External links