Cisco Nexus 3000 and 9000 Series Switches Border Gateway Protocol Denial of Service Vulnerability — CISCO-SA-BGP-IEFAB-3HB2PWTX
Cisco · Cisco · CISCO-SA-BGP-IEFAB-3HB2PWTX
ID
CISCO-SA-BGP-IEFAB-3HB2PWTX
CISCO-SA-BGP-IEFAB-3HB2PWTX
Date
Activity
Source
Cisco
Cisco
Vendor
Cisco
Cisco
Threat
medium
medium
Summary
A vulnerability in the Border Gateway Protocol (BGP) enforce-first-as feature of Cisco Nexus 3000 Series Switches and Cisco Nexus 9000 Series Switches in standalone NX-OS mode could allow an unauthenticated, remote attacker to trigger BGP peer flaps, resulting in a denial of service (DoS) condition. This vulnerability is due to incorrect parsing of a transitive BGP attribute. An attacker could exploit…
Product
Cisco Nexus 3000 and 9000 Series Switches Border Gateway Protocol Denial of Service
What to do
General, cautious steps (verify details in the official source):
- Review exposure and plan remediation based on risk and environment.
- Identify affected product versions in your inventory and verify whether you are impacted.
- Apply vendor patches/updates or recommended mitigations as soon as available.
- Read the official advisory for exact affected versions and remediation steps.