SARA / Free Tools / CVE / CVE-2019-1594

CVE-2019-1594 — A vulnerability in the 802

A vulnerability in the 802.1X implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation of Extensible Authentication Protoco

CVSS
7.4 HIGH
EPSS
0.72% (top 27.80%)
CWE
CWE-264
Published
2019-03-06T22:00:00.000Z
Last modified
2024-11-21T19:44:08.732Z
CVSS vector
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

01What is this vulnerability?

A vulnerability in the 802.1X implementation for Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to incomplete input validation of Extensible Authentication Protocol over LAN (EAPOL) frames. An attacker could exploit this vulnerability by sending a crafted EAPOL frame to an…

02Affected products

VendorProductVersions
CiscoNexus 1000V Switch for VMware vSphereunspecified
CiscoNexus 3000 Series Switchesunspecified
CiscoNexus 3500 Platform Switchesunspecified
CiscoNexus 2000, 5500, 5600, and 6000 Series Switchesunspecified, unspecified
CiscoNexus 7000 and 7700 Series Switchesunspecified
CiscoNexus 9000 Series Fabric Switches in ACI Modeunspecified
CiscoNexus 9000 Series Switches in Standalone NXOS Mode — unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →