CVE-2019-12656

Cisco IOx Application Environment Denial of Service Vulnerability

Description

A vulnerability in the IOx application environment of multiple Cisco platforms could allow an unauthenticated, remote attacker to cause the IOx web server to stop processing HTTPS requests, resulting in a denial of service (DoS) condition. The vulnerability is due to a Transport Layer Security (TLS) implementation issue. An attacker could exploit this vulnerability by sending crafted TLS packets to the IOx web server on an affected device. A successful exploit could allow the attacker to cause the IOx web server to stop processing HTTPS requests, resulting in a DoS condition.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.47% Top 25%
Vendor Advisory cisco.com
Affected: Cisco Cisco Industrial Routers Operating System Software
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2019-12656?
CVE-2019-12656 has been scored as a high severity vulnerability.
How to fix CVE-2019-12656?
To fix CVE-2019-12656, 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-2019-12656 being actively exploited in the wild?
It is possible that CVE-2019-12656 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-2019-12656?
CVE-2019-12656 affects Cisco Cisco Industrial Routers Operating System Software.
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