{"id":87157,"date":"2026-07-09T21:37:32","date_gmt":"2026-07-09T21:37:32","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T06:00:00","slug":"cve-2025-20340-denial-of-service-vulnerability-in-cisco-ios-xr-software-s-arp-implementation","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-20340-denial-of-service-vulnerability-in-cisco-ios-xr-software-s-arp-implementation\/","title":{"rendered":"CVE-2025-20340: Denial of Service Vulnerability in Cisco IOS XR Software’s ARP Implementation<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

This report provides an in-depth analysis of the CVE-2025-20340 vulnerability. This cybersecurity vulnerability is found in the implementation of the Address Resolution Protocol (ARP) in Cisco IOS XR Software. If exploited, it could lead to a Denial of Service (DoS) condition on affected devices. This vulnerability has the potential to disrupt network infrastructure, which underlines the importance of its mitigation.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-20340
\nSeverity: High (CVSS Score: 7.4)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>

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