CVE-2019-1752

A vulnerability in the ISDN functions of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload. The vulnerability is due to incorrect processing of specific values in the Q.931 information elements. An attacker could exploit this vulnerability by calling the affected device with specific Q.931 information elements being present. An exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition on an affected device.

• CWE-20
• CWE-20

• http://www.securityfocus.com/bid/107589Third Party Advisory, VDB Entry
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-isdnPatch, Vendor Advisory
• http://www.securityfocus.com/bid/107589Third Party Advisory, VDB Entry
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-isdnPatch, Vendor Advisory

Published

Mar 28, 2019

Last Modified

Jun 17, 2026

Status

Modified

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