Cisco AsyncOS on Email Security Appliance (ESA) devices with software 8.5.6-073, 8.5.6-074, and 9.0.0-461, when clustering is enabled, allows remote attackers to cause a denial of service (clustering and SSH outage) via a packet flood, aka Bug IDs CSCur13704 and CSCuq05636.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Email_security_appliance | Cisco | 8.5.6-074 (including) | 8.5.6-074 (including) |
| Email_security_appliance_firmware | Cisco | 8.5.6-073 (including) | 8.5.6-073 (including) |
| Email_security_appliance_firmware | Cisco | 9.0.0-461 (including) | 9.0.0-461 (including) |