CVE-2017-12355

Name: CVE-2017-12355
Creator: NVD / NIST
Published: 2017-11-30T09:29:01.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 3.07%

Last modified Jun 17, 2026

CVE-2017-12355 is a vulnerability of currently unknown severity. A vulnerability in the Local Packet Transport Services (LPTS) ingress frame-processing functionality of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause one of the LPTS processes on an affected system to restart unexpectedly, resulting in a brief denial of service (DoS) condition. The vulnerability is due to incomplete LPTS frame validation by the affected software. EPSS estimates a 3.07% chance of exploitation in the next 30 days.

Description

A vulnerability in the Local Packet Transport Services (LPTS) ingress frame-processing functionality of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause one of the LPTS processes on an affected system to restart unexpectedly, resulting in a brief denial of service (DoS) condition. The vulnerability is due to incomplete LPTS frame validation by the affected software. An attacker could exploit this vulnerability by sending crafted XML requests to the management interface of an affected system. A successful exploit could allow the attacker to cause one of the LPTS processes on the affected system to restart unexpectedly, which would impact LPTS traffic and cause a brief DoS condition while the process restarts. Cisco Bug IDs: CSCvf76332.

Metrics

EPSS Probability

3.07%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Ios Xr	6.4.1_base

References

http://www.securityfocus.com/bid/101989Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039927Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ios-xrVendor Advisory
http://www.securityfocus.com/bid/101989Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039927Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-ios-xrVendor Advisory

Timeline

Published: Nov 30, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12355?

How severe is CVE-2017-12355?

Severity scoring for CVE-2017-12355 is pending analysis. The EPSS model estimates a 3.07% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12355?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-12355?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST