CVEvulnerability
CVE-2021-1435
7.2 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-03-24
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.2 HIGH — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.0 ([email protected])
- 6.6 MEDIUM — CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 9.0 HIGH — AV:N/AC:L/Au:S/C:C/I:C/A:C
- Weaknesses
- CWE-22
Description
A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to inject arbitrary commands that can be executed as the root user. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted request to the web UI of an affected device with arbitrary commands injected into a portion of the request. A successful exploit could allow the attacker to execute arbitrary commands as the root user.
Affected configurations
• cisco ios xe 16.9.1
• cisco ios xe 16.9.1a
• cisco ios xe 16.9.1b
• cisco ios xe 16.9.1c
• cisco ios xe 16.9.1d
• cisco ios xe 16.9.1s
• cisco ios xe 16.9.2
• cisco ios xe 16.9.2a
• cisco ios xe 16.9.2s
• cisco ios xe 16.9.3
• cisco ios xe 16.9.3a
• cisco ios xe 16.9.3h
• cisco ios xe 16.9.3s
• cisco ios xe 16.9.4
• cisco ios xe 16.9.4c
• cisco ios xe 16.9.5
• cisco ios xe 16.9.5f
• cisco ios xe 16.9.6
• cisco ios xe 16.10.1
• cisco ios xe 16.10.1a
• cisco ios xe 16.10.1b
• cisco ios xe 16.10.1c
• cisco ios xe 16.10.1d
• cisco ios xe 16.10.1e
• cisco ios xe 16.10.1f
• cisco ios xe 16.10.1g
• cisco ios xe 16.10.1s
• cisco ios xe 16.10.2
• cisco ios xe 16.10.3
• cisco ios xe 16.11.1
• cisco ios xe 16.11.1a
• cisco ios xe 16.11.1b
• cisco ios xe 16.11.1c
• cisco ios xe 16.11.1s
• cisco ios xe 16.11.2
• cisco ios xe 17.2.1v
Related
Weakness · CWE (1)
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory weakness