CVE-2011-0355: n/a vulnerability

CVE-2011-0355: Cisco Nexus 1000V Virtual Ethernet Module (VEM) 4.0(4) SV1(1) through SV1(3b), as used in VMware ESX 4.0 an...

Cisco Nexus 1000V Virtual Ethernet Module (VEM) 4.0(4) SV1(1) through SV1(3b), as used in VMware ESX 4.0 and 4.1 and ESXi 4.0 and 4.1, does not properly handle dropped packets, which allows guest OS users to cause a denial of service (ESX or ESXi host OS crash) by sending an 802.1Q tagged packet over an access vEthernet port, aka Cisco Bug ID CSCtj17451.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 21:51 UTC (UTC+00:00)

Security readout for executives and security teams

This vulnerability lets a user inside a virtual machine crash the underlying VMware ESX or ESXi host when Cisco Nexus 1000V VEM is in use. The business impact is host-level denial of service: multiple workloads on that host could be interrupted. Exposure is likely limited to legacy VMware ESX/ESXi 4.0 or 4.1 environments running Cisco Nexus 1000V VEM versions SV1(1) through SV1(3b). Modern environments are unlikely affected unless they retain this old virtual switching stack. Treat as high priority only where legacy VMware ESX/ESXi 4.x and Cisco Nexus 1000V remain in production. The issue affects availability at the host layer, but evidence of active exploitation is not provided. Mitigation focus: Identify ESX/ESXi 4.0 or 4.1 hosts using Cisco Nexus 1000V VEM.; Apply the Cisco Nexus 1000V VEM updates referenced by VMware VMSA-2011-0002.; Review Cisco Nexus 1000V release notes for the fixed release path..

Prepared: Jun 27, 2026, 18:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 17, 2011, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
cisco-nexus-packets-dos(65217)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

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CWE details

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