Executive Risk Summary
"A vulnerability in Cisco IOS XE Software for Catalyst 9000 Series Switches could allow an unauthenticated, adjacent attacker to cause an egress port to become blocked and drop all outbound traffic, resulting in a denial of service (DoS) condition. This vulnerability is due to improper handling of crafted Ethernet frames."
Operational Audit Arsenal
Target Type Firmware Image
Target Asset Cisco IOS XE
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 patching
Internal Work Notes
CVE-2025-20311: Potential DoS vulnerability in Cisco IOS XE Software for Catalyst 9000 Series Switches, verify version and apply patch as needed
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.