CVE-2021-34734 Information
Description
A vulnerability in the Link Layer Discovery Protocol (LLDP) implementation for the Cisco Video Surveillance 7000 Series IP Cameras firmware could allow an unauthenticated adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper management of memory resources referred to as a double free. An attacker could exploit this vulnerability by sending crafted LLDP packets to an affected device. A successful exploit could allow the attacker to cause the affected device to reload resulting in a DoS condition. Note: LLDP is a Layer 2 protocol. To exploit these vulnerabilities an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Reference
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
NONE
Availability Impact
NONE
Base Score
HIGH
Base Severity
6.5
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