CVE-2021-1529
High
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.
SeverityHigh
CVSS7.8
Exploit probability24. percentile0.3%
Product
Cisco Ios Xe
PublishedOct 21, 2021
First seenOct 21, 2021
Weakness typeCWE-78OS command injection
How to fix
Update
- cisco ios_xe17.2.3, 17.3.4, 17.4.2, 17.5.1a or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco ios_xe | 16.12 ≤ v ≤ 17.0, 17.2 ≤ v < 17.2.3, 17.3 ≤ v < 17.3.4, 17.4 ≤ v < 17.4.2, 17.5 ≤ v < 17.5.1a, 17.6.0 | 17.2.3, 17.3.4, 17.4.2, 17.5.1a |
| cisco ios_xe_sd-wan | 17.2.1r ≤ v | — |
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