CVEvulnerability

CVE-2021-1529

7.8 HIGH Published 2021-10-21 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-10-21
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
6.9 MEDIUM — AV:L/AC:M/Au:N/C:C/I:C/A:C
Weaknesses
CWE-78

Description

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. The vulnerability is due to insufficient input validation by the system CLI. An attacker could exploit this vulnerability by authenticating to an affected device and submitting crafted input to the system CLI. A successful exploit could allow the attacker to execute commands on the underlying operating system with root privileges.

Affected configurations

• cisco ios xe (>= 16.12 <= 17.0) • cisco ios xe (>= 17.2 < 17.2.3) • cisco ios xe (>= 17.3 < 17.3.4) • cisco ios xe (>= 17.4 < 17.4.2) • cisco ios xe (>= 17.5 < 17.5.1a) • cisco ios xe 17.6.0 • cisco ios xe sd-wan (>= 17.2.1r)

Related

Weakness · CWE (1)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness

References