CVE-2020-3530

HIGH

Cisco IOS XR < 7.1.2 - Authenticated Privilege Escalation via Task Group Assignment Bypass

Title source: llm
STIX 2.1

Description

A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to execute that command, even though administrative privileges should be required. The attacker must have valid credentials on the affected device. The vulnerability is due to incorrect mapping in the source code of task group assignments for a specific command. An attacker could exploit this vulnerability by issuing the command, which they should not be authorized to issue, on an affected device. A successful exploit could allow the attacker to invalidate the integrity of the disk and cause the device to restart. This vulnerability could allow a user with read permissions to issue a specific command that should require Administrator privileges.

References (1)

Core 1

Scores

CVSS v3 8.4
EPSS 0.0003
EPSS Percentile 9.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-264 CWE-863
Status published
Products (1)
cisco/ios_xr < 7.1.2
Published Sep 04, 2020
Tracked Since Feb 18, 2026