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CVE-2024-20433

Cisco IOS XE - RSVP

Cisco CVSS 8.6 Updated March 16, 2026

Executive Risk Summary

"A vulnerability in the Resource Reservation Protocol (RSVP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to a buffer overflow when processing crafted RSVP packets."

Operational Audit Arsenal

Target Type Firmware Image
Target Asset Cisco IOS XE Image
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 during reboot

Internal Work Notes

CVE-2024-20433: RSVP DoS vulnerability in Cisco IOS XE, requires firmware update to prevent remote denial of service attacks

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.