Cisco Unity 4.x before 4.2(1)ES161, 5.x before 5.0(1)ES53, and 7.x before 7.0(2)ES8, when using anonymous authentication (aka native Unity authentication), allows remote attackers to cause a denial of service (session exhaustion) via a large number of connections.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Unity | Cisco | * | 4.2(1) (including) |
| Unity | Cisco | * | 5.0(1) (including) |
| Unity | Cisco | * | 7.0(2) (including) |
| Unity | Cisco | 4.0 (including) | 4.0 (including) |
| Unity | Cisco | 4.0(1) (including) | 4.0(1) (including) |
| Unity | Cisco | 4.0(2) (including) | 4.0(2) (including) |
| Unity | Cisco | 4.0(3) (including) | 4.0(3) (including) |
| Unity | Cisco | 4.0(3)-sr2 (including) | 4.0(3)-sr2 (including) |
| Unity | Cisco | 4.0(4) (including) | 4.0(4) (including) |
| Unity | Cisco | 4.0(4)-sr1 (including) | 4.0(4)-sr1 (including) |
| Unity | Cisco | 4.0(5) (including) | 4.0(5) (including) |
| Unity | Cisco | 4.1(1) (including) | 4.1(1) (including) |
| Unity | Cisco | 5.0 (including) | 5.0 (including) |
| Unity | Cisco | 7.0 (including) | 7.0 (including) |