A vulnerability in the ISDN subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker 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 attacker to cause the process to crash, resulting in a reload of the affected device.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2020-09-24T17:51:39.806711Z

Updated: 2024-09-17T03:59:55.252Z

Reserved: 2019-12-12T00:00:00

Link: CVE-2020-3511

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2020-09-24T18:15:21.230

Modified: 2023-05-23T13:55:46.380

Link: CVE-2020-3511

cve-icon Redhat

No data.