#VU51779 Buffer overflow in Cisco Systems, Inc products - CVE-2021-1451

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Main Vulnerability Database Vulnerabilities #VU51779

#VU51779 Buffer overflow in Cisco Systems, Inc products - CVE-2021-1451

Published: March 30, 2021


Vulnerability identifier: #VU51779
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-1451
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cisco IOS XE
Cisco Catalyst 4500 Series
Cisco Catalyst 4500-X Series
Software vendor:
Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Easy Virtual Switching System (VSS) feature. A remote attacker can send specially crafted Easy VSS protocol packets to UDP port 5500, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install updates from vendor's website.

External links