CVE-2021-1128 MEDIUM

CVE-2021-1128: Cisco IOS XR Software Unauthorized Information Disclosure Vulnerability

Vendor Cisco
Product Cisco IOS XR Software
Weakness CWE-201
Published February 4, 2021
Last update November 8, 2024

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the CLI parser of Cisco IOS XR Software could allow an authenticated, local attacker to view more information than their privileges allow. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this vulnerability by using a specific command at the command line. A successful exploit could allow the attacker to obtain sensitive information within the configuration that otherwise might not have been accessible beyond the privileges of the invoking user.

Key dates

02Disclosure timeline

February 4, 2021 CVE published
November 8, 2024 Record updated