7.2
CVSSv2

CVE-2021-1390

Published: 24/03/2021 Updated: 07/11/2023
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 6.7 | Impact Score: 5.9 | Exploitability Score: 0.8
VMScore: 641
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

A vulnerability in one of the diagnostic test CLI commands of Cisco IOS XE Software could allow an authenticated, local malicious user to execute arbitrary code on an affected device. To exploit this vulnerability, the attacker would need to have valid user credentials at privilege level 15. This vulnerability exists because the affected software permits modification of the run-time memory of an affected device under specific circumstances. An attacker could exploit this vulnerability by authenticating to the affected device and issuing a specific diagnostic test command at the CLI. A successful exploit could trigger a logic error in the code that was designed to restrict run-time memory modifications. The attacker could take advantage of this logic error to overwrite system memory locations and execute arbitrary code on the underlying Linux operating system (OS) of the affected device.

Vulnerability Trend

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cisco ios xe 16.8.1

cisco ios xe 16.9.1

cisco ios xe 16.8.1a

cisco ios xe 16.8.1s

cisco ios xe 16.8.1b

cisco ios xe 16.8.2

cisco ios xe 16.8.1d

cisco ios xe 16.8.1c

cisco ios xe 16.8.1e

cisco ios xe 16.9.1s

cisco ios xe 16.9.1c

cisco ios xe 16.9.1b

cisco ios xe 16.9.1d

cisco ios xe 16.10.1

cisco ios xe 16.9.1a

cisco ios xe 16.9.2a

cisco ios xe 16.9.2

cisco ios xe 16.12.1

cisco ios xe 16.11.1

cisco ios xe 17.1.1

cisco ios xe 16.11.1a

cisco ios xe 16.12.1c

cisco ios xe 16.12.1t

cisco ios xe 16.11.2

cisco ios xe 16.12.1s

cisco ios xe 16.12.1a

cisco ios xe 16.12.1x

cisco ios xe 16.11.1c

cisco ios xe 16.11.1b

cisco ios xe 16.11.1s

cisco ios xe 16.12.1w

cisco ios xe 16.10.1s

cisco ios xe 16.10.1d

cisco ios xe 16.9.2s

cisco ios xe 16.9.3h

cisco ios xe 16.9.3a

cisco ios xe 16.10.1a

cisco ios xe 16.10.1f

cisco ios xe 16.10.1g

cisco ios xe 16.10.2

cisco ios xe 16.9.3

cisco ios xe 16.12.1y

cisco ios xe 16.10.1e

cisco ios xe 16.10.1b

cisco ios xe 16.8.3

cisco ios xe 16.9.3s

cisco ios xe 16.10.1c

cisco ios xe 16.9.4

cisco ios xe 16.12.2

cisco ios xe 16.9.4c

cisco ios xe 16.12.2a

cisco ios xe 16.10.3

cisco ios xe 16.12.4

cisco ios xe 16.9.5

cisco ios xe 16.9.5f

cisco ios xe 16.12.3

cisco ios xe 17.2.1

cisco ios xe 17.1.1s

cisco ios xe 16.12.2t

cisco ios xe 17.1.1a

cisco ios xe 16.12.2s

cisco ios xe 16.12.3a

cisco ios xe 17.1.1t

cisco ios xe 17.2.1a

cisco ios xe 17.2.1v

cisco ios xe 16.12.1z

cisco ios xe 16.12.3s

cisco ios xe 17.2.1r

cisco ios xe 17.1.2

cisco ios xe 16.12.4a

cisco ios xe 17.2.2

cisco ios xe 16.12.1za

cisco ios xe 17.2.3

cisco ios xe 16.9.6

Vendor Advisories

A vulnerability in one of the diagnostic test CLI commands of Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code on an affected device To exploit this vulnerability, the attacker would need to have valid user credentials at privilege level 15 This vulnerability exists because the affected software permits ...