CVE-2017-12270

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

A vulnerability in the gRPC code of Cisco IOS XR Software for Cisco Network Convergence System (NCS) 5500 Series Routers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the emsd service stops. The vulnerability is due to the software's inability to process HTTP/2 packets. An attacker could exploit this vulnerability by sending a malformed HTTP/2 frame to the affected device. A successful exploit could allow the attacker to create a DoS condition when the emsd service stops. Cisco Bug IDs: CSCvb99388.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-119

Affected software

Vendor	Product	Versions
n/a	Cisco IOS XR	Cisco IOS XR

References

http://www.securityfocus.com/bid/101171Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039504Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-ncsVendor Advisory
http://www.securityfocus.com/bid/101171Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039504Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-ncsVendor Advisory

Timeline

Published: Oct 5, 2017
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2017

CVE-2017-122718.8A vulnerability in Cisco SPA300 and SPA500 Series IP Phones could allow an unauthenticated, remote attacker to execute unwanted actions on a CVE-2017-122726.1A vulnerability in the web framework code of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site s CVE-2017-122736.5A vulnerability in 802.11 association request frame processing for the Cisco Aironet 1560, 2800, and 3800 Series Access Points could allow a CVE-2017-122746.5A vulnerability in Extensible Authentication Protocol (EAP) ingress frame processing for the Cisco Aironet 1560, 2800, and 3800 Series Acces CVE-2017-122757.4A vulnerability in the implementation of 802.11v Basic Service Set (BSS) Transition Management functionality in Cisco Wireless LAN Controlle CVE-2017-122768.1A vulnerability in the web framework code for the SQL database interface of the Cisco Prime Collaboration Provisioning application could all CVE-2017-122778.8A vulnerability in the Smart Licensing Manager service of the Cisco Firepower 4100 Series Next-Generation Firewall (NGFW) and Firepower 9300 CVE-2017-122786.3A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Wireless LAN Controllers could allow an authenticated, r CVE-2017-122794.3A vulnerability in the packet processing code of Cisco IOS Software for Cisco Aironet Access Points could allow an unauthenticated, adjacent CVE-2017-12283.7IBM Tivoli Endpoint Manager (IBM BigFix Platform 9.2 and 9.5) could allow a remote attacker to obtain sensitive information, caused by the f CVE-2017-122807.5A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) Discovery Request parsing functionality of Cisco Wireless CVE-2017-122817.5A vulnerability in the implementation of Protected Extensible Authentication Protocol (PEAP) functionality for standalone configurations of