A vulnerability in the ISDN subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent malicious user to cause a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to insufficient input validation when the ISDN Q.931 messages are processed. An attacker could exploit this vulnerability by sending a malicious ISDN Q.931 message to an affected device. A successful exploit could allow the malicious user to cause the process to crash, resulting in a reload of the affected device.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
cisco ios_xe 15.1\\(4\\)m |
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