Home Cisco CVE-2024-20318
Back to Cisco

CVE-2024-20318

Cisco IOS XR Software - Layer 2 Ethernet services

Cisco CVSS 7.4 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the Layer 2 Ethernet services of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service condition by sending specific Ethernet frames. This could result in a loss of traffic over the interfaces supported by the network processor and potentially cause the line card to reset."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Cisco IOS XR Software
Standard Path Global Firmware

Manual Verification Required

This is a non-Windows asset (Cisco). Use the target asset details and official path provided above to verify your current version against the official vendor advisories listed below.

Patch Impact Forecast

Reboot Required Likely

Network disruption possible due to line card reset

Internal Work Notes

CVE-2024-20318: Potential DoS vulnerability in Cisco IOS XR Software Layer 2 Ethernet services. Verify version and apply patch if necessary.

Technical Intelligence & Operational Utilities • Delivered Weekly

Intelligence Sources

Related Cisco Threats

Data compiled from NVD, MSRC, and CISA KEV Catalog. Intelligence synthesized via AI. Scripts provided for diagnostic purposes under MIT License.