Cisco Nexus 1000V Insufficient VSM/VEM Authentication (CVE-2013-1211)

high Tenable OT Security Plugin ID 501337


The remote OT asset is affected by a vulnerability.


Cisco NX-OS on the Nexus 1000V does not properly handle authentication for Virtual Ethernet Module (VEM) to Virtual Supervisor Module (VSM) communication, which allows remote attackers to obtain VEM access via (1) spoofed STUN packets or (2) a crafted VMware ESXi instance, aka Bug ID CSCud14832.

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Refer to the vendor advisory.

See Also

Plugin Details

Severity: High

ID: 501337

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 7/25/2023

Updated: 12/14/2023

Supported Sensors: Tenable OT Security

Risk Information


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2013-1211


Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:nx-os:-

Required KB Items: Tenable.ot/Cisco

Exploit Ease: No known exploits are available

Patch Publication Date: 5/29/2013

Vulnerability Publication Date: 5/29/2013

Reference Information

CVE: CVE-2013-1211

CWE: 287