CVE-2017-12270

7.5 HIGH
Published: October 05, 2017 Modified: May 13, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/101171
Source: psirt@cisco.com
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039504
Source: psirt@cisco.com
Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/101171
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039504
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
2.3%
81th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

cisco