Vulnerability Monitor

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CVE-2017-3878

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).

Published

2017-03-17T22:59:00.547

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco nx-os 7.0\(3\)i3\(0.170\) Yes
Hardware cisco nexus_92160yc_switch - No
Hardware cisco nexus_92300yc_switch - No
Hardware cisco nexus_92304qc_switch - No
Hardware cisco nexus_9236c_switch - No
Hardware cisco nexus_9272q_switch - No
Hardware cisco nexus_93108tc-ex_switch - No
Hardware cisco nexus_93120tx_switch - No
Hardware cisco nexus_93128tx_switch - No
Hardware cisco nexus_93180lc-ex_switch - No
Hardware cisco nexus_93180yc-ex_switch - No
Hardware cisco nexus_9332pq_switch - No
Hardware cisco nexus_9336pq_aci_spine_switch - No
Hardware cisco nexus_9372px-e_switch - No
Hardware cisco nexus_9372px_switch - No
Hardware cisco nexus_9372tx-e_switch - No
Hardware cisco nexus_9372tx_switch - No
Hardware cisco nexus_9396px_switch - No
Hardware cisco nexus_9396tx_switch - No
Hardware cisco nexus_9508_switch - No
References