Vulnerability Database

289,784

Total vulnerabilities in the database

CVE-2021-1435

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.

  • Published: Mar 24, 2021
  • Updated: Apr 14, 2023
  • CVE: CVE-2021-1435
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.2
  • AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v2:

  • Severity: High
  • Score: 9
  • AV:N/AC:L/Au:S/C:C/I:C/A:C

CWEs:

OWASP TOP 10:

Software From Fixed in
cisco / ios_xe 16.9.1 16.9.1.x
cisco / ios_xe 16.9.1s 16.9.1s.x
cisco / ios_xe 16.9.1c 16.9.1c.x
cisco / ios_xe 16.9.1b 16.9.1b.x
cisco / ios_xe 16.9.1d 16.9.1d.x
cisco / ios_xe 16.10.1 16.10.1.x
cisco / ios_xe 16.9.1a 16.9.1a.x
cisco / ios_xe 16.9.2a 16.9.2a.x
cisco / ios_xe 16.9.2 16.9.2.x
cisco / ios_xe 16.11.1 16.11.1.x
cisco / ios_xe 16.11.1a 16.11.1a.x
cisco / ios_xe 16.11.2 16.11.2.x
cisco / ios_xe 16.11.1c 16.11.1c.x
cisco / ios_xe 16.11.1b 16.11.1b.x
cisco / ios_xe 16.11.1s 16.11.1s.x
cisco / ios_xe 16.10.1s 16.10.1s.x
cisco / ios_xe 16.10.1d 16.10.1d.x
cisco / ios_xe 16.9.2s 16.9.2s.x
cisco / ios_xe 16.9.3h 16.9.3h.x
cisco / ios_xe 16.9.3a 16.9.3a.x
cisco / ios_xe 16.10.1a 16.10.1a.x
cisco / ios_xe 16.10.1f 16.10.1f.x
cisco / ios_xe 16.10.1g 16.10.1g.x
cisco / ios_xe 16.10.2 16.10.2.x
cisco / ios_xe 16.9.3 16.9.3.x
cisco / ios_xe 16.10.1e 16.10.1e.x
cisco / ios_xe 16.10.1b 16.10.1b.x
cisco / ios_xe 16.9.3s 16.9.3s.x
cisco / ios_xe 16.10.1c 16.10.1c.x
cisco / ios_xe 16.9.4 16.9.4.x
cisco / ios_xe 16.9.4c 16.9.4c.x
cisco / ios_xe 16.10.3 16.10.3.x
cisco / ios_xe 16.9.5 16.9.5.x
cisco / ios_xe 16.9.5f 16.9.5f.x
cisco / ios_xe 17.2.1v 17.2.1v.x
cisco / ios_xe 16.9.6 16.9.6.x