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HIGH · 7.8

CVE-2021-1529

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 inp...

Vulnerability 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.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
CiscoIos Xe>= 16.12, <= 17.0
Cisco1000 Integrated Services Router-
Cisco1100-4G\/6G Integrated Services Router-
Cisco1100-4P Integrated Services Router-
Cisco1100-8P Integrated Services Router-
Cisco1100 Integrated Services Router-
Cisco1101-4P Integrated Services Router-
Cisco1101 Integrated Services Router-
Cisco1109-2P Integrated Services Router-
Cisco1109-4P Integrated Services Router-
Cisco1109 Integrated Services Router-
Cisco1111X-8P Integrated Services Router-
Cisco1111X Integrated Services Router-
Cisco111X Integrated Services Router-
Cisco1120 Integrated Services Router-
Cisco1160 Integrated Services Router-
Cisco4000 Integrated Services Router-
Cisco4221 Integrated Services Router-
Cisco4321 Integrated Services Router-
Cisco4331 Integrated Services Router-

Related Weaknesses (CWE)

CWE-78

References

FAQ

What is CVE-2021-1529?

CVE-2021-1529 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 inp...

How severe is CVE-2021-1529?

CVE-2021-1529 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-1529?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios Xe, Cisco 1000 Integrated Services Router, Cisco 1100-4G\/6G Integrated Services Router, Cisco 1100-4P Integrated Services Router, Cisco 1100-8P Integrated Services Router.