A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to read sensitive memory content, create a denial of service (DoS) condition, or execute arbitrary code as root
Published Jun 20, 2018
9.8
CRITICALCVSS 3.0
EPSS 8.59%
Description
A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to read sensitive memory content, create a denial of service (DoS) condition, or execute arbitrary code as root. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packet headers. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to cause a buffer overflow or buffer overread condition in the Cisco Fabric Services component, which could allow the attacker to read sensitive memory content, create a DoS condition, or execute arbitrary code as root. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69951, CSCve02459, CSCve02461, CSCve02463, CSCve02474, CSCve04859.
Affected products
- Vendor n/a Product Cisco FXOS and NX-OS unknown Defaultn/a
- Version Cisco FXOS and NX-OS unknownStatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Cisco FXOS and NX-OS unknown | n/a |
|
Configuration 1
- 7.3\(2\)d1\(0.49\)
- 8.0\(1\)
- 8.1\(0.112\)s0
Running on/with
- n/a
Configuration 2
- 7.0\(0\)hsk\(0.357\)
- 7.3\(0\)d1\(0.98\)
- 8.1\(0.2\)s0
Running on/with
- n/a
Configuration 3
- r211
- r231
Running on/with
- n/a
Configuration 4
- 8.1\(0\)bd\(0.20\)
- 8.1\(1\)s4
Running on/with
- n/a
Configuration 5
- 3.1\(3a\)a
- 7.0\(0\)hsk\(0.357\)
Running on/with
- 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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Nov 29, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (34 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 8.59% (0.08591) | 94.92th | v5 (v2026.06.15) |
| Sep 22, 2026 | 8.59% (0.08591) | 94.83th | v5 (v2026.06.15) |
| Sep 21, 2026 | 7.50% (0.07501) | 94.30th | v5 (v2026.06.15) |
| Sep 6, 2026 | 8.59% (0.08591) | 94.71th | v5 (v2026.06.15) |
| Sep 5, 2026 | 7.50% (0.07501) | 94.17th | v5 (v2026.06.15) |
| Aug 30, 2026 | 8.59% (0.08591) | 94.69th | v5 (v2026.06.15) |
| Aug 28, 2026 | 7.50% (0.07501) | 94.13th | v5 (v2026.06.15) |
| Aug 24, 2026 | 8.70% (0.08700) | 94.72th | v5 (v2026.06.15) |
| Aug 23, 2026 | 7.60% (0.07596) | 94.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 8.70% (0.08700) | 94.43th | v5 (v2026.06.15) |
| Mar 17, 2026 | 5.76% (0.05758) | 90.35th | v4 (v2025.03.14) |
| Nov 21, 2025 | 2.38% (0.02385) | 84.49th | v4 (v2025.03.14) |
| Nov 18, 2025 | 6.04% (0.06045) | 89.81th | v4 (v2025.03.14) |
| Jun 14, 2025 | 2.40% (0.02399) | 84.29th | v4 (v2025.03.14) |
| Apr 28, 2025 | 3.61% (0.03612) | 87.11th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.91% (0.04914) | 88.61th | v4 (v2025.03.14) |
| Mar 29, 2025 | 10.73% (0.10734) | 88.83th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.91% (0.04914) | 88.88th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.45% (0.03452) | 91.84th | v3 (v2023.03.01) |
| May 30, 2024 | 3.45% (0.03452) | 91.48th | v3 (v2023.03.01) |
| Apr 29, 2024 | 3.37% (0.03368) | 91.30th | v3 (v2023.03.01) |
| Dec 21, 2023 | 2.35% (0.02351) | 88.66th | v3 (v2023.03.01) |
| Nov 11, 2023 | 3.29% (0.03294) | 90.24th | v3 (v2023.03.01) |
| Jul 8, 2023 | 3.81% (0.03807) | 90.60th | v3 (v2023.03.01) |
| Jun 14, 2023 | 4.13% (0.04135) | 90.94th | v3 (v2023.03.01) |
| May 8, 2023 | 4.30% (0.04300) | 91.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.96% (0.03959) | 90.64th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.69% (0.03693) | 85.03th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.69% (0.03693) | 83.51th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.69% (0.03693) | 66.67th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.27% (0.02269) | 50.81th | v1 |
| Jan 6, 2022 | 2.27% (0.02269) | 50.31th | v1 |
| Sep 1, 2021 | 2.27% (0.02269) | 77.69th | v1 |
| Apr 14, 2021 | 2.27% (0.02269) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/104513 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1041169 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-ace x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/104513 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1041169 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxnxos-ace | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.