Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability
A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial-of-service (DoS) condition.
- Vendor
- Cisco
- Product
- Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches
- CVSS
- 8.6
- EPSS (exploit probability)
- 7.8%
- Status
- kev
- CISA patch-by (BOD 22-01)
- Published
A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial-of-service (DoS) condition.
Added to CISA’s Known Exploited Vulnerabilities catalog on 2022-03-03. Required action per CISA: Apply updates per vendor instructions. Due date: 2022-03-17.
This is an auto-synced KEV catalog record pending a full 0dayNews write-up — see CISA’s KEV catalog and the NVD record linked above for primary sources.