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CVE-2020-3512

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CVE-2020-3512

Published: Sep 24, 2020

Modified: Nov 13, 2024

PUBLISHED

CVSS v3.0

7.4

HIGH

Description

A vulnerability in the PROFINET handler for Link Layer Discovery Protocol (LLDP) messages of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a crash on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient validation of LLDP messages in the PROFINET LLDP message handler. An attacker could exploit this vulnerability by sending a malicious LLDP message to an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

VendorProductVersions

Cisco

Cisco IOS

affected
n/a

Weaknesses (CWE)

CWE-388

CVSS v3.0 Details

CVSS v3.0 Vector

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High

References

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