Cisco Nexus 9000 Series Switches Standalone NX-OS Mode Fibre Channel over Ethernet NPV Denial of Service Vulnerability
Published Mar 11, 2019
7.4
HIGHCVSS 3.0
EPSS 1.27%
Description
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).
Affected products
-
- Version unspecifiedStatusaffectedConstraints<7.0(3)I7(5)
- Version unspecifiedStatusaffectedConstraints<9.2(2)
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Nexus 9000 Series Switches in Standalone NX-OS Mode | n/a |
|
Configuration 1
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 2
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AV:A/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Nov 21, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.27% (0.01270) | 68.81th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.27% (0.01270) | 68.51th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.16% (0.00163) | 53.32th | v3 (v2023.03.01) |
| Mar 17, 2024 | 0.16% (0.00163) | 51.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.17% (0.00171) | 52.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.40% (0.01404) | 49.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.40% (0.03396) | 67.40th | v1 |
| Jan 6, 2022 | 3.40% (0.03396) | 67.08th | v1 |
| Jan 5, 2022 | 0.78% (0.00777) | 52.24th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.78% (0.00777) | 0.00th | v1 |
References (2)
- http://www.securityfocus.com/bid/107336 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos vendor-advisoryx_refsource_CISCOExploitVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/107336 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos | vendor-advisoryx_refsource_CISCOExploitVendor Advisory |
Change history (0)
No recorded changes yet.