The ISDN implementation in Cisco IOS 15.3S allows remote attackers to cause a denial of service (device reload) via malformed Q931 SETUP messages, aka Bug ID CSCut37890.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios | Cisco | 15.3(3)s1 (including) | 15.3(3)s1 (including) |
| Ios | Cisco | 15.3s (including) | 15.3s (including) |