CVE-2019-12657

Cisco IOS XE Software Unified Threat Defense Denial of Service Vulnerability

Description

A vulnerability in Unified Threat Defense (UTD) in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper validation of IPv6 packets through the UTD feature. An attacker could exploit this vulnerability by sending IPv6 traffic through an affected device that is configured with UTD. A successful exploit could allow the attacker to cause the device to reload, resulting in a denial of service (DoS) condition.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.45% Top 25%
Vendor Advisory cisco.com
Affected: Cisco Cisco IOS XE Software 3.16.0S
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190925-utd vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-12657?
CVE-2019-12657 has been scored as a high severity vulnerability.
How to fix CVE-2019-12657?
To fix CVE-2019-12657, 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-2019-12657 being actively exploited in the wild?
It is possible that CVE-2019-12657 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-12657?
CVE-2019-12657 affects Cisco Cisco IOS XE Software 3.16.0S.
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