CVE-2019-1962

highpriority · track · 31EPSS 0.020 · 80 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.98% (80th) EPSS

CVSS 7.8 · high

Is it mine?

115 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause process crashes, which can result in a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient validation of TCP packets when processed by the Cisco Fabric Services over IP (CFSoIP) feature. An attacker could exploit this vulnerability by sending a malicious Cisco Fabric Services TCP packet to an affected device. A successful exploit could allow the attacker to cause process crashes, resulting in a device reload and a DoS condition. Note: There are three distribution methods that can be configured for Cisco Fabric Services. This vulnerability affects only distribution method CFSoIP, which is disabled by default. See the Details section for more information.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedCisco NX-OS Software 6.0(2)A8(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(3) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(4) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(4a) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(5) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(6) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(7) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(7a) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(7b) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(8) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 6.0(2)A8(9) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(3) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(3) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(3a) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(3a) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(4) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)F3(4) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(1t) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(1t) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(2) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(3) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(3) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(4) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(4) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(5) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(5) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(6) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(6) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(6t) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(6t) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(7) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(7) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8a) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8a) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8b) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8b) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8z) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I4(8z) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(2) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(3) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(3) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(3a) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(3a) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(3b) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I5(3b) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I6(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I6(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I6(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I6(2) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(1) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(2) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(3) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(3) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(3z) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)I7(3z) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)IA7(1) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)IA7(2) when installed on Cisco Nexus 9000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.0(3)IM7(2) when installed on Cisco Nexus 3000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(0)D1(1) when installed on Cisco MDS 9000 Multilayer Directors and Fabric Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(0)D1(1) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(0)DX(1) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(0)DY(1) when installed on Cisco MDS 9000 Multilayer Directors and Fabric Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(1)D1(1) when installed on Cisco MDS 9000 Multilayer Directors and Fabric Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(1)D1(1) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(1)DY(1) when installed on Cisco MDS 9000 Multilayer Directors and Fabric Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(2)D1(1) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(2)D1(1d) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(2)D1(2) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(2)D1(3) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco NX-OS Software 7.3(2)D1(3a) when installed on Cisco Nexus 7000 Series Switchescisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco Unified Computing System (Managed)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technical severity, 0–10. One row per scoring source.

8.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–8.6

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · ENISA EU

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · Cisco PSIRT US

v3.08.6highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · psirt@cisco.com USexploitability 3.9 · impact 4

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.6highAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (115)

Products and version ranges known to be affected.

showing 20 of 115

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-20190828-nxos-fsip-dosCisco NX-OS Software Cisco Fabric Services over IP Denial of Service Vulnerability2019-08-28csaf · cisco_csafUS
A vulnerability in the Cisco Fabric Services component of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause process crashes, which can result in a denial of service (DoS) condition on an affected system. The vulnerability is due to insufficient validation of TCP packets when processed by the Cisco Fabric Services over IP (CFSoIP) feature. An attacker could exploit this vulnerability by sending a malicious Cisco Fabric Services TCP packet to an affected device. A successful exploit could allow the attacker to cause process crashes, resulting in a device reload and a DoS condition. Note: There are three distribution methods that can be configured for Cisco Fabric Services. This vulnerability affects only distribution method CFSoIP, which is disabled by default. See the Details ["#dt"] section for more information. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-fsip-dos ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190828-nxos-fsip-dos"] This advisory is part of the August 2019 Cisco FXOS and NX-OS Software Security Advisory Bundled Publication, which includes five Cisco Security Advisories that describe five vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: August 2019 Cisco FXOS and NX-OS Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-72243"].

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf NVD CVE.org MITRE

published 2019-08-28modified 2026-06-17

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references (13)

External citations — patches, advisories, analysis.

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