CVE-2019-1752

Cisco IOS and IOS XE Software ISDN Interface Denial of Service Vulnerability

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.59% Top 20%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS and IOS XE Software
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-isdn patch vendor advisory
http://www.securityfocus.com/bid/107589 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2019-1752?
CVE-2019-1752 has been scored as a high severity vulnerability.
How to fix CVE-2019-1752?
To fix CVE-2019-1752, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-1752 being actively exploited in the wild?
It is possible that CVE-2019-1752 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-1752?
CVE-2019-1752 affects Cisco Cisco IOS and IOS XE Software.
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