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High severity7.5NVD Advisory· Published Aug 30, 2019· Updated Jun 17, 2026

CVE-2019-1968

CVE-2019-1968

Description

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API on an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition in the NX-API service; however, the NX-OS device itself would still be available and passing network traffic. Note: The NX-API feature is disabled by default.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

16
  • Cisco Systems, Inc./Nx OS14 versions
    cpe:2.3:o:cisco:nx-os:6.0\(2\)a8:*:*:*:*:*:*:*+ 13 more
    • cpe:2.3:o:cisco:nx-os:6.0\(2\)a8:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:6.1\(2\)i2:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:6.1\(2\)i3:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:7.0\(3\)f:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:7.0\(3\)i4:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:7.0\(3\)i7:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:7.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:7.2:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:7.3:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:8.0:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:8.1:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:8.2:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:8.3:*:*:*:*:*:*:*
    • cpe:2.3:o:cisco:nx-os:9.2:*:*:*:*:*:*:*
  • Cisco Systems, Inc./NX-OS Softwarellm-fuzzy2 versions
    (expand)+ 1 more
    • (no CPE)
    • (no CPE)range: unspecified

Patches

Vulnerability mechanics

References

1

News mentions

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