Read the docs
TI-2018-00296 Aliases CVE-2018-0337GHSA-77q3-qf4h-gm4j

Improper input validation in Cisco NX-OS unknown

Priority LOW 36CWE-20Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-863.

Summary

A vulnerability in the role-based access-checking mechanisms of Cisco NX-OS Software could allow an authenticated, local attacker to execute arbitrary commands on an affected device. The vulnerability exists because the affected software lacks proper input and validation checks for certain file systems. An attacker could exploit this vulnerability by issuing crafted commands in the CLI of an affected device. A successful exploit could allow the attacker to cause other users to execute unwanted, arbitrary commands on the affected device. Cisco Bug IDs: CSCvd06339, CSCvd15698, CSCvd36108, CSCvf52921, CSCvf52930, CSCvf52953, CSCvf52976.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00346 28th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—Cisco NX-OS unknownCisco NX-OS unknown—No fix listedCNA
  • Cisco NX-OS unknown Vendor— Affected Cisco NX-OS unknown Fixed in — No fix listed CNA

CPE configurations NVD · 26

CPEVersionsRoleVendor
cpe:2.3:o:cisco:nx-os:7.0\(8\)n1\(1\):*:*:*:*:*:*:*7.0(8)n1(1)VulnerableCisco
cpe:2.3:o:cisco:nx-os:7.1\(4\)n1\(1\):*:*:*:*:*:*:*7.1(4)n1(1)VulnerableCisco
cpe:2.3:o:cisco:nx-os:7.3\(1\)n1\(0.6\):*:*:*:*:*:*:*7.3(1)n1(0.6)VulnerableCisco
cpe:2.3:o:cisco:nx-os:7.3\(2\)n1\(0.350\):*:*:*:*:*:*:*7.3(2)n1(0.350)VulnerableCisco
cpe:2.3:h:cisco:nexus_5000:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5010:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5020:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5548p:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5548up:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5596t:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:nx-os:7.0\(8\)n1\(1\):*:*:*:*:*:*:* Versions 7.0(8)n1(1) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:7.1\(4\)n1\(1\):*:*:*:*:*:*:* Versions 7.1(4)n1(1) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:7.3\(1\)n1\(0.6\):*:*:*:*:*:*:* Versions 7.3(1)n1(0.6) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:7.3\(2\)n1\(0.350\):*:*:*:*:*:*:* Versions 7.3(2)n1(0.350) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:nexus_5000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5010:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5020:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5548p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5548up:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5596t:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 16 more CPE
CPEVersionsRoleVendor
cpe:2.3:h:cisco:nexus_5596up:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_56128p:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5624q:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5648q:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5672up:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_5696q:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:nx-os:7.3\(1\)dx\(0.119\):*:*:*:*:*:*:*7.3(1)dx(0.119)VulnerableCisco
cpe:2.3:o:cisco:nx-os:7.3\(3\)d1\(0.2\):*:*:*:*:*:*:*7.3(3)d1(0.2)VulnerableCisco
cpe:2.3:o:cisco:nx-os:8.0\(0.54\)s0:*:*:*:*:*:*:*8.0(0.54)s0VulnerableCisco
cpe:2.3:o:cisco:nx-os:8.1\(0\)bd\(0.20\):*:*:*:*:*:*:*8.1(0)bd(0.20)VulnerableCisco
cpe:2.3:o:cisco:nx-os:8.1\(0.9\):*:*:*:*:*:*:*8.1(0.9)VulnerableCisco
cpe:2.3:o:cisco:nx-os:8.2\(0.4\)s0:*:*:*:*:*:*:*8.2(0.4)s0VulnerableCisco
cpe:2.3:o:cisco:nx-os:8.3\(0\)spg\(0.30\):*:*:*:*:*:*:*8.3(0)spg(0.30)VulnerableCisco
cpe:2.3:o:cisco:nx-os:8.8\(3.5\)s0:*:*:*:*:*:*:*8.8(3.5)s0VulnerableCisco
cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:h:cisco:nexus_5596up:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_56128p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5624q:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5648q:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5672up:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_5696q:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:nx-os:7.3\(1\)dx\(0.119\):*:*:*:*:*:*:* Versions 7.3(1)dx(0.119) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:7.3\(3\)d1\(0.2\):*:*:*:*:*:*:* Versions 7.3(3)d1(0.2) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:8.0\(0.54\)s0:*:*:*:*:*:*:* Versions 8.0(0.54)s0 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:8.1\(0\)bd\(0.20\):*:*:*:*:*:*:* Versions 8.1(0)bd(0.20) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:8.1\(0.9\):*:*:*:*:*:*:* Versions 8.1(0.9) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:8.2\(0.4\)s0:*:*:*:*:*:*:* Versions 8.2(0.4)s0 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:8.3\(0\)spg\(0.30\):*:*:*:*:*:*:* Versions 8.3(0)spg(0.30) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:nx-os:8.8\(3.5\)s0:*:*:*:*:*:*:* Versions 8.8(3.5)s0 Vulnerable ·Cisco
  • cpe:2.3:h:cisco:nexus_7000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:h:cisco:nexus_7700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-0337
  2. 2026-10-03 Alias added: GHSA-77q3-qf4h-gm4j

References

Advisory 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