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HIGH

Cisco IOS XE Software Protection Against Distributed Denial of Service Attacks Feature Vulnerability

Published Sep 23, 2021

Description

A vulnerability in the Protection Against Distributed Denial of Service Attacks feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct denial of service (DoS) attacks to or through the affected device. This vulnerability is due to incorrect programming of the half-opened connections limit, TCP SYN flood limit, or TCP SYN cookie features when the features are configured in vulnerable releases of Cisco IOS XE Software. An attacker could exploit this vulnerability by attempting to flood traffic to or through the affected device. A successful exploit could allow the attacker to initiate a DoS attack to or through an affected device.

Affected products

Remediation

No remediation recorded yet.

Weaknesses (1)

References (2)

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED
Assigner cisco
Published Sep 23, 2021
Updated Nov 7, 2024
Reserved Jun 15, 2021

CISA Vulnrichment

Updated Nov 7, 2024

NVD

Status Modified
Modified Jun 17, 2026

Red Hat

No data

ENISA EUVD

Assigner cisco
Published Sep 23, 2021
Updated Nov 7, 2024

GitHub

No data