CVE-2021-34728

HIGH

Cisco IOS XR < 7.3.2 - Authenticated Privilege Escalation via CLI

Title source: llm
STIX 2.1

Description

Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

References (1)

Core 1
Core References

Scores

CVSS v3 7.8
EPSS 0.0016
EPSS Percentile 36.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-78
Status published
Products (1)
cisco/ios_xr < 7.3.2
Published Sep 09, 2021
Tracked Since Feb 18, 2026