#VU57116 Buffer overflow in Cisco Small Business 220 Series Smart Switches - CVE-2021-34779

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Main Vulnerability Database Vulnerabilities #VU57116

#VU57116 Buffer overflow in Cisco Small Business 220 Series Smart Switches - CVE-2021-34779

Published: October 7, 2021


Vulnerability identifier: #VU57116
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-34779
CWE-ID: CWE-119
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vulnerable software:
Cisco Small Business 220 Series Smart Switches
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 when processing LLDP messages in the Link Layer Discovery Protocol. A remote attacker on the local network can 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