CVE-2021-1352 HIGH

CVE-2021-1352: Cisco IOS XE Software DECnet Phase IV/OSI Denial of Service Vulnerability

Vendor Cisco
Product Cisco IOS XE Software
Weakness CWE-823
Published March 24, 2021
Last update November 8, 2024

CVSS base score

7.4/10
Attack vector Adjacent
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

What the vulnerability does

01Description

A vulnerability in the DECnet Phase IV and DECnet/OSI protocol processing of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation of DECnet traffic that is received by an affected device. An attacker could exploit this vulnerability by sending DECnet traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Key dates

02Disclosure timeline

March 24, 2021 CVE published
November 8, 2024 Record updated