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TI-2019-01244 Aliases CVE-2019-1617GHSA-x732-f4pc-ff5p

Cisco Nexus 9000 Series Switches Standalone NX-OS Mode Fibre Channel over Ethernet NPV Denial of Service Vulnerability

Priority LOW 35CWE-913Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA.

Summary

A vulnerability in the Fibre Channel over Ethernet (FCoE) N-port Virtualization (NPV) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to an incorrect processing of FCoE packets when the fcoe-npv feature is uninstalled. An attacker could exploit this vulnerability by sending a stream of FCoE frames from an adjacent host to an affected device. An exploit could allow the attacker to cause packet amplification to occur, resulting in the saturation of interfaces and a DoS condition. Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5) and 9.2(2).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0127 69th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Nexus 9000 Series Switches in Standalone NX-OS Mode (Cisco): 7.0(3)I7(5), 9.2(2)

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoNexus 9000 Series Switches in Standalone NX-OS Modebefore 7.0(3)I7(5); before 9.2(2)7.0(3)I7(5), 9.2(2)Patch availableCNA
  • Nexus 9000 Series Switches in Standalone NX-OS Mode VendorCisco Affected before 7.0(3)I7(5); before 9.2(2) Fixed in 7.0(3)I7(5), 9.2(2) Patch available CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*9.2 to before 9.2\(2\)VulnerableCisco
cpe:2.3:h:cisco:n9k-c92160yc-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:n9k-c9236c:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:n9k-c9272q:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:n9k-c93180lc-ex:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:n9k-c93180yc-ex:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:n9k-c93180yc-fx:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:n9k-x9732c-ex:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:n9k-x9736c-fx:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*7.0\(3\)i5 to before 7.0\(3\)i7\(5\)VulnerableCisco
  • cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* Versions 9.2 to before 9.2\(2\) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:n9k-c92160yc-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:n9k-c9236c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:n9k-c9272q:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:n9k-c93180lc-ex:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:n9k-c93180yc-ex:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:n9k-c93180yc-fx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:n9k-x9732c-ex:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:n9k-x9736c-fx:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:* Versions 7.0\(3\)i5 to before 7.0\(3\)i7\(5\) Vulnerable ·Cisco

Remediation

  • Fix · CNA Nexus 9000 Series Switches in Standalone NX-OS Mode (Cisco) Fixed in 7.0(3)I7(5), 9.2(2)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1617
  2. 2026-10-03 Alias added: GHSA-x732-f4pc-ff5p

References

Exploit 1

  • TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
  • TI-2024-13332 Cisco NX-OS Software CLI Command Injection Vulnerability KEVCVSS 3.1MEDIUM 6.7
  • TI-2018-00260 Improper input validation in Cisco NX-OS unknown CVSS 3.0CRITICAL 9.8
  • TI-2019-01226 Cisco NX-OS Software Netstack Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2022-05183 Cisco NX-OS Software Cisco Fabric Services Over IP Denial of Service Vulnerability CVSS 3.1HIGH 8.6
  • TI-2022-05182 Cisco Nexus 9000 Series Switches Bidirectional Forwarding Detection Denial of Service Vulnerability CVSS 3.1HIGH 8.6
See all 274 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences