CVE-2018-0480 Cisco IOS XE Software Errdisable Denial of Service Vulnerability

What is CVE-2018-0480?

CVE-2018-0480 is a medium-severity vulnerability in Cisco Ios Xe, published on 5 Oct 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A vulnerability in the errdisable per VLAN feature of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause the device to crash, leading to a denial of service (DoS) condition. The vulnerability is due to a race condition that occurs when the VLAN and port enter an errdisabled state, resulting in an incorrect state in the software. An attacker could exploit this vulnerability by sending frames that trigger the errdisable condition. A successful exploit could allow the attacker to cause the affected device to crash, leading to a DoS condition.

Weakness: CWE-362

Which versions are affected by CVE-2018-0480?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2018-0480?

No fix has been published for CVE-2018-0480 yet. Limit exposure of the affected software until one is available.

Is CVE-2018-0480 being exploited?

There is no known exploitation of CVE-2018-0480 in the wild and no public exploit code.

Other vulnerabilities in Cisco Ios Xe

• CVE-2023-20198 Cisco IOS XE Web UI Privilege Escalation Exploited Critical 10.0
• CVE-2018-0151 Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Exploited Critical 9.8
• CVE-2023-20273 Cisco IOS XE Web UI Command Injection Exploited High 7.2
• CVE-2025-20188 Hardcoded credentials in Cisco IOS XE Software Critical 10.0
• CVE-2021-34770 Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability Critical 10.0

All Cisco Ios Xe vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2q4r-gmc8-6577.