CVE-2017-3878

MEDIUM

Cisco NX-OS on Nexus 9000 Series Switches - Unauthenticated Denial of Service via Telnet Login

Title source: llm
STIX 2.1

Description

A Denial of Service vulnerability in the Telnet remote login functionality of Cisco NX-OS Software running on Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause a Telnet process used for login to terminate unexpectedly and the login attempt to fail. There is no impact to user traffic flowing through the device. Affected Products: This vulnerability affects Cisco Nexus 9000 Series Switches that are running Cisco NX-OS Software and are configured to allow remote Telnet connections to the device. More Information: CSCux46778. Known Affected Releases: 7.0(3)I3(0.170). Known Fixed Releases: 7.0(3)I3(1) 7.0(3)I3(0.257) 7.0(3)I3(0.255) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1).

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1038047
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/96927

Scores

CVSS v3 5.3
EPSS 0.0205
EPSS Percentile 78.9%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Details

CWE
CWE-119
Status published
Products (2)
cisco/nx-os 7.0\(3\)i3\(0.170\)
n/a/Cisco Nexus 9000 Series Switches Cisco Nexus 9000 Series Switches
Published Mar 17, 2017
Tracked Since Feb 18, 2026