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Rewterz Threat Advisory – CVE-2021-1431 – Cisco IOS XE SD-WAN Software vDaemon Denial of Service Vulnerability

Severity

High

Analysis Summary

CVE-2021-1431

This vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

Impact

Denial of Service

Affected Vendors

Cisco

Affected Products

Cisco IOS XE SD-WAN Software

Remediation

Refer to vendor advisory for the complete list of affected products and their respective patches.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-sdwdos-4zeEeC9w