CVE-2021-34727

published 2021-09-23

CVE-2021-34727: A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an…

critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

A vulnerability in the vDaemon process in Cisco IOS XE SD-WAN Software could allow an unauthenticated, remote attacker to cause a buffer overflow on an affected device. This vulnerability is due to insufficient bounds checking when an affected device processes traffic. An attacker could exploit this vulnerability by sending crafted traffic to the device. A successful exploit could allow the attacker to cause a buffer overflow and possibly execute arbitrary commands with root-level privileges, or cause the device to reload, which could result in a denial of service condition.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
cisco	cisco_ios_xe_sd-wan_software	—	—
cisco	ios_xe_sd-wan	—	—

CWE-120