Search criteria
2 vulnerabilities found for n9k-x9736c-fx by cisco
VAR-202209-1859
Vulnerability from variot - Updated: 2025-11-18 15:12Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers. Layer-2 (L2) network security controls provided by various devices, such as switches, routers, and operating systems, can be bypassed by stacking Ethernet protocol headers. An attacker can send crafted packets through vulnerable devices to cause Denial-of-service (DoS) or to perform a man-in-the-middle (MitM) attack against a target network.CVE-2021-27853 Affected CVE-2021-27854 Affected CVE-2021-27861 Affected CVE-2021-27862 AffectedCVE-2021-27853 Affected CVE-2021-27854 Affected CVE-2021-27861 Affected CVE-2021-27862 Affected. IEEE of ieee 802.2 Products from multiple other vendors contain vulnerabilities related to authentication bypass through spoofing.Information may be tampered with
Show details on source website{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-202209-1859",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "meraki ms420",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "nexus 93108tc-fx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-x9464px",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9736pq",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus x9636q-r",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "meraki ms350",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "sg500x-48p",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "nexus 9516",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-x9736c-ex",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "catalyst 6509-v-e",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "nexus 93108tc-ex",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sg500-28mpp",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "n9k-c9348d-gx2a",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sf-500-24mp",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "meraki ms250",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "nexus 9364c-gx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-x9636c-rx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9336c-fx2-e",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sf500-18p",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "ios xe",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "17.4.1"
},
{
"model": "meraki ms450",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "sf500-48mp",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "catalyst 6503-e",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "n9k-x9788tc-fx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9716d-gx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sf500-48",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "sg500x-48",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "nexus 93108tc-fx3p",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9636pq",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-x9636c-r",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sg500-28",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "sg500x-24mpp",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "nexus 92160yc-x",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "catalyst c6840-x-le-40g",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "sg500-52mp",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "802.2",
"scope": "lte",
"trust": 1.0,
"vendor": "ieee",
"version": "802.2h-1997"
},
{
"model": "sg500-28p",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "catalyst 6880-x",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "nexus 93240yc-fx2",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "catalyst 6506-e",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "n9k-x9564px",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9508",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-c93600cd-gx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sg500x-48mpp",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "ios xe",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "17.6.1"
},
{
"model": "nexus 92348gc-x",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9536pq",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "meraki ms390",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "catalyst 6509-neb-a",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "catalyst 6509-e",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "n9k-x9732c-fx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "meraki ms425",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "nexus 9236c",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9504",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 93120tx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9364c",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-x9464tx2",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-x9732c-ex",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "meraki ms410",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "nexus 93216tc-fx2",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-c9364d-gx2a",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "ios xe",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.2\\(07\\)e03"
},
{
"model": "ios xe",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.2\\(07\\)e02"
},
{
"model": "meraki ms210",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "nexus 93180yc-fx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 92304qc",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "catalyst 6513-e",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "catalyst c6824-x-le-40g",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "catalyst c6832-x-le",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "sg500-52p",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "nexus 92300yc",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 93360yc-fx2",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 93180yc-fx3",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9348gc-fxp",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sf500-24p",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "n9k-c9316d-gx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9272q",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "catalyst 6800ia",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "catalyst 6840-x",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "nexus 9800",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sg500-52",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "catalyst 6504-e",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "nexus 93180yc-ex",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sg500x-24p",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "sg500x-24",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "n9k-x9564tx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "sf500-24",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "3.0.0.61"
},
{
"model": "n9k-x9432c-s",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "ios xe",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "17.3.3"
},
{
"model": "n9k-x9736c-fx",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "n9k-c9332d-gx2b",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "p802.1q",
"scope": "lte",
"trust": 1.0,
"vendor": "ietf",
"version": "d1.0"
},
{
"model": "catalyst 6807-xl",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "nexus 9432pq",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9336c-fx2",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "nexus 9332c",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "meraki ms355",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "catalyst c6816-x-le",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "15.5\\(01.01.85\\)sy07"
},
{
"model": "n9k-x97160yc-ex",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": "9.3\\(5\\)"
},
{
"model": "meraki ms225",
"scope": "eq",
"trust": 1.0,
"vendor": "cisco",
"version": null
},
{
"model": "cisco ios xe",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "802.2",
"scope": null,
"trust": 0.8,
"vendor": "ieee",
"version": null
},
{
"model": "catalyst 6509-e",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6840-x",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6509-neb-a",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6506-e",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst c6816-x-le",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "ios xe",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst c6824-x-le-40g",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6509-v-e",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "p802.1q",
"scope": null,
"trust": 0.8,
"vendor": "\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6280\u8853\u30bf\u30b9\u30af\u30d5\u30a9\u30fc\u30b9 ietf",
"version": null
},
{
"model": "catalyst 6880-x",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6807-xl",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst c6832-x-le",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6800ia",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst c6840-x-le-40g",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6503-e",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6504-e",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
},
{
"model": "catalyst 6513-e",
"scope": null,
"trust": 0.8,
"vendor": "\u30b7\u30b9\u30b3\u30b7\u30b9\u30c6\u30e0\u30ba",
"version": null
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"credits": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/credits#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "This document was written by Timur Snoke.Statement Date:\u00a0\u00a0 September 27, 2022",
"sources": [
{
"db": "CERT/CC",
"id": "VU#855201"
}
],
"trust": 0.8
},
"cve": "CVE-2021-27853",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "ADJACENT",
"author": "nvd@nist.gov",
"availabilityImpact": "NONE",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"exploitabilityScore": 2.8,
"id": "CVE-2021-27853",
"impactScore": 1.4,
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"trust": 2.0,
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
"version": "3.1"
},
{
"attackComplexity": "Low",
"attackVector": "Adjacent Network",
"author": "NVD",
"availabilityImpact": "None",
"baseScore": 4.7,
"baseSeverity": "Medium",
"confidentialityImpact": "None",
"exploitabilityScore": null,
"id": "CVE-2021-27853",
"impactScore": null,
"integrityImpact": "Low",
"privilegesRequired": "None",
"scope": "Changed",
"trust": 0.8,
"userInteraction": "None",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
"version": "3.0"
}
],
"severity": [
{
"author": "nvd@nist.gov",
"id": "CVE-2021-27853",
"trust": 1.0,
"value": "MEDIUM"
},
{
"author": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"id": "CVE-2021-27853",
"trust": 1.0,
"value": "MEDIUM"
},
{
"author": "NVD",
"id": "CVE-2021-27853",
"trust": 0.8,
"value": "Medium"
},
{
"author": "CNNVD",
"id": "CNNVD-202209-2794",
"trust": 0.6,
"value": "MEDIUM"
}
]
}
],
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202209-2794"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"db": "NVD",
"id": "CVE-2021-27853"
},
{
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Layer 2 network filtering capabilities such as IPv6 RA guard or ARP inspection can be bypassed using combinations of VLAN 0 headers and LLC/SNAP headers. Layer-2 (L2) network security controls provided by various devices, such as switches, routers, and operating systems, can be bypassed by stacking Ethernet protocol headers. An attacker can send crafted packets through vulnerable devices to cause Denial-of-service (DoS) or to perform a man-in-the-middle (MitM) attack against a target network.CVE-2021-27853 Affected\nCVE-2021-27854 Affected\nCVE-2021-27861 Affected\nCVE-2021-27862 AffectedCVE-2021-27853 Affected\nCVE-2021-27854 Affected\nCVE-2021-27861 Affected\nCVE-2021-27862 Affected. IEEE of ieee 802.2 Products from multiple other vendors contain vulnerabilities related to authentication bypass through spoofing.Information may be tampered with",
"sources": [
{
"db": "NVD",
"id": "CVE-2021-27853"
},
{
"db": "CERT/CC",
"id": "VU#855201"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"db": "VULMON",
"id": "CVE-2021-27853"
}
],
"trust": 2.43
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2021-27853",
"trust": 4.1
},
{
"db": "CERT/CC",
"id": "VU#855201",
"trust": 3.2
},
{
"db": "JVNDB",
"id": "JVNDB-2021-020376",
"trust": 0.8
},
{
"db": "AUSCERT",
"id": "ESB-2022.4805",
"trust": 0.6
},
{
"db": "CNNVD",
"id": "CNNVD-202209-2794",
"trust": 0.6
},
{
"db": "VULMON",
"id": "CVE-2021-27853",
"trust": 0.1
}
],
"sources": [
{
"db": "CERT/CC",
"id": "VU#855201"
},
{
"db": "VULMON",
"id": "CVE-2021-27853"
},
{
"db": "CNNVD",
"id": "CNNVD-202209-2794"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"id": "VAR-202209-1859",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "VARIoT devices database",
"id": null
}
],
"trust": 1.0
},
"last_update_date": "2025-11-18T15:12:14.158000Z",
"patch": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/patch#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"title": "draft-ietf-v6ops-ra-guard-08 Cisco Systems Cisco\u00a0Security\u00a0Advisory",
"trust": 0.8,
"url": "https://standards.ieee.org/ieee/802.1Q/10323/"
},
{
"title": "Multiple Cisco Product security vulnerabilities",
"trust": 0.6,
"url": "http://123.124.177.30/web/xxk/bdxqById.tag?id=209667"
}
],
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202209-2794"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
}
]
},
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "CWE-290",
"trust": 1.0
},
{
"problemtype": "Avoid authentication by spoofing (CWE-290) [NVD evaluation ]",
"trust": 0.8
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 2.4,
"url": "https://blog.champtar.fr/vlan0_llc_snap/"
},
{
"trust": 2.4,
"url": "https://kb.cert.org/vuls/id/855201"
},
{
"trust": 1.7,
"url": "https://standards.ieee.org/ieee/802.2/1048/"
},
{
"trust": 1.7,
"url": "https://datatracker.ietf.org/doc/draft-ietf-v6ops-ra-guard/08/"
},
{
"trust": 1.7,
"url": "https://standards.ieee.org/ieee/802.1q/10323/"
},
{
"trust": 1.7,
"url": "https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-vu855201-j3z8cktx"
},
{
"trust": 1.0,
"url": "https://www.kb.cert.org/vuls/id/855201"
},
{
"trust": 0.8,
"url": "https://jvn.jp/ta/jvnta96784241/"
},
{
"trust": 0.8,
"url": "https://nvd.nist.gov/vuln/detail/cve-2021-27853"
},
{
"trust": 0.6,
"url": "https://cxsecurity.com/cveshow/cve-2021-27853/"
},
{
"trust": 0.6,
"url": "https://www.auscert.org.au/bulletins/esb-2022.4805"
},
{
"trust": 0.6,
"url": "https://vigilance.fr/vulnerability/cisco-juniper-ingress-filtrering-bypass-via-layer-2-39380"
},
{
"trust": 0.1,
"url": "https://nvd.nist.gov"
}
],
"sources": [
{
"db": "VULMON",
"id": "CVE-2021-27853"
},
{
"db": "CNNVD",
"id": "CNNVD-202209-2794"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "CERT/CC",
"id": "VU#855201"
},
{
"db": "VULMON",
"id": "CVE-2021-27853"
},
{
"db": "CNNVD",
"id": "CNNVD-202209-2794"
},
{
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2022-09-27T00:00:00",
"db": "CERT/CC",
"id": "VU#855201"
},
{
"date": "2022-09-27T00:00:00",
"db": "VULMON",
"id": "CVE-2021-27853"
},
{
"date": "2022-09-27T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202209-2794"
},
{
"date": "2023-10-20T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"date": "2022-09-27T18:15:09.527000",
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2022-10-03T00:00:00",
"db": "CERT/CC",
"id": "VU#855201"
},
{
"date": "2022-09-27T00:00:00",
"db": "VULMON",
"id": "CVE-2021-27853"
},
{
"date": "2022-10-13T00:00:00",
"db": "CNNVD",
"id": "CNNVD-202209-2794"
},
{
"date": "2023-10-20T06:17:00",
"db": "JVNDB",
"id": "JVNDB-2021-020376"
},
{
"date": "2025-11-04T20:15:59.233000",
"db": "NVD",
"id": "CVE-2021-27853"
}
]
},
"threat_type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/threat_type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "remote or local",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202209-2794"
}
],
"trust": 0.6
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "L2 network security controls can be bypassed using VLAN 0 stacking and/or 802.3 headers",
"sources": [
{
"db": "CERT/CC",
"id": "VU#855201"
}
],
"trust": 0.8
},
"type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "other",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-202209-2794"
}
],
"trust": 0.6
}
}
VAR-201903-0548
Vulnerability from variot - Updated: 2024-11-23 22:12A vulnerability in the Fibre Channel over Ethernet (FCoE) N-port Virtualization (NPV) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to an incorrect processing of FCoE packets when the fcoe-npv feature is uninstalled. An attacker could exploit this vulnerability by sending a stream of FCoE frames from an adjacent host to an affected device. An exploit could allow the attacker to cause packet amplification to occur, resulting in the saturation of interfaces and a DoS condition. Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5) and 9.2(2). Cisco NX-OS The software is vulnerable to improper control of dynamically manipulated code resources.Service operation interruption (DoS) There is a possibility of being put into a state. Cisco Nexus 9000 Series Switches is a 9000 series switch of Cisco of the United States. Cisco NX-OS Software is a set of data center-level operating system software used by switches. An attacker can use this vulnerability to cause a denial of service. This issue is being tracked by Cisco bug ID CSCvk44504
Show details on source website{
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/VARIoTentry#",
"affected_products": {
"@id": "https://www.variotdbs.pl/ref/affected_products"
},
"configurations": {
"@id": "https://www.variotdbs.pl/ref/configurations"
},
"credits": {
"@id": "https://www.variotdbs.pl/ref/credits"
},
"cvss": {
"@id": "https://www.variotdbs.pl/ref/cvss/"
},
"description": {
"@id": "https://www.variotdbs.pl/ref/description/"
},
"exploit_availability": {
"@id": "https://www.variotdbs.pl/ref/exploit_availability/"
},
"external_ids": {
"@id": "https://www.variotdbs.pl/ref/external_ids/"
},
"iot": {
"@id": "https://www.variotdbs.pl/ref/iot/"
},
"iot_taxonomy": {
"@id": "https://www.variotdbs.pl/ref/iot_taxonomy/"
},
"patch": {
"@id": "https://www.variotdbs.pl/ref/patch/"
},
"problemtype_data": {
"@id": "https://www.variotdbs.pl/ref/problemtype_data/"
},
"references": {
"@id": "https://www.variotdbs.pl/ref/references/"
},
"sources": {
"@id": "https://www.variotdbs.pl/ref/sources/"
},
"sources_release_date": {
"@id": "https://www.variotdbs.pl/ref/sources_release_date/"
},
"sources_update_date": {
"@id": "https://www.variotdbs.pl/ref/sources_update_date/"
},
"threat_type": {
"@id": "https://www.variotdbs.pl/ref/threat_type/"
},
"title": {
"@id": "https://www.variotdbs.pl/ref/title/"
},
"type": {
"@id": "https://www.variotdbs.pl/ref/type/"
}
},
"@id": "https://www.variotdbs.pl/vuln/VAR-201903-0548",
"affected_products": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/affected_products#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"model": "nx-os",
"scope": "gte",
"trust": 1.0,
"vendor": "cisco",
"version": "9.2"
},
{
"model": "nx-os",
"scope": "lt",
"trust": 1.0,
"vendor": "cisco",
"version": "9.2\\(2\\)"
},
{
"model": "nx-os",
"scope": "lt",
"trust": 1.0,
"vendor": "cisco",
"version": "7.0\\(3\\)i7\\(5\\)"
},
{
"model": "nx-os",
"scope": "gte",
"trust": 1.0,
"vendor": "cisco",
"version": "7.0\\(3\\)i5"
},
{
"model": "nx-os",
"scope": "lt",
"trust": 0.8,
"vendor": "cisco",
"version": "7.0(3)i7(5)"
},
{
"model": "nx-os",
"scope": "lt",
"trust": 0.8,
"vendor": "cisco",
"version": "9.2(2)"
},
{
"model": "nexus series switches in standalone nx-os mode",
"scope": "eq",
"trust": 0.6,
"vendor": "cisco",
"version": "9000"
},
{
"model": "n9k-x9736c-fx",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "n9k-c93180yc-fx",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "n9k-c93180lc-ex",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "n9k-x9732c-ex",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "n9k-c93180yc-ex",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "n9k-c9236c",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "n9k-c9272q",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "n9k-c92160yc-x",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "nx-os 7.0 i7",
"scope": null,
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "nx-os 7.0 i7",
"scope": "ne",
"trust": 0.6,
"vendor": "cisco",
"version": null
},
{
"model": "nx-os",
"scope": "eq",
"trust": 0.3,
"vendor": "cisco",
"version": "9.2"
},
{
"model": "nx-os 7.0 i6",
"scope": null,
"trust": 0.3,
"vendor": "cisco",
"version": null
},
{
"model": "nx-os 7.0 i5",
"scope": null,
"trust": 0.3,
"vendor": "cisco",
"version": null
},
{
"model": "nx-os 7.0 i4",
"scope": null,
"trust": 0.3,
"vendor": "cisco",
"version": null
},
{
"model": "nexus series switches in standalone nx-os mode",
"scope": "eq",
"trust": 0.3,
"vendor": "cisco",
"version": "90000"
},
{
"model": "nx-os",
"scope": "ne",
"trust": 0.3,
"vendor": "cisco",
"version": "9.2(2)"
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "BID",
"id": "107336"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"configurations": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/configurations#",
"children": {
"@container": "@list"
},
"cpe_match": {
"@container": "@list"
},
"data": {
"@container": "@list"
},
"nodes": {
"@container": "@list"
}
},
"data": [
{
"CVE_data_version": "4.0",
"nodes": [
{
"cpe_match": [
{
"cpe22Uri": "cpe:/o:cisco:nx-os",
"vulnerable": true
}
],
"operator": "OR"
}
]
}
],
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
}
]
},
"credits": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/credits#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, or otherwise using such software upgrades, accessing, customers agree to follow the terms of the Cisco software license: https://www.cisco.com/c/en/us/products/end-user-license-agreement.html Additionally, customers should consider that this advisory is part of a bundled publication. The following page provides a complete list of bundle advisories: Cisco?Event Response: March 2019 Cisco?FXOS and NX-OS Software Security Advisory Bundled Publication. In the following tables, refer to the Recommended Releases documents in the release notes for the device., the left column lists releases of Cisco?FXOS Software or Cisco?NX-OS Software. The center column indicates whether a release is affected by the vulnerability described in this advisory and the first release that includes the fix for this vulnerability. The right column indicates whether a release is affected by all the vulnerabilities described in this bundle and which release includes fixes for those vulnerabilities. Although the releases listed in the right column of each table include fixes for the vulnerabilities, the fix related to the Cisco NX-OS Software Image Signature Verification Vulnerability requires a BIOS upgrade as part of the software upgrade. Customers who are upgrading the software for any of the following products are advised to refer to this advisory for further details about the BIOS upgrade and affected product IDs and BIOS versions: Nexus 3000 Series Switches Nexus 9000 Series Fabric Switches in ACI mode Nexus 9000 Series Switches in standalone NX-OS mode Nexus 9500 R-Series Line Cards and Fabric Modules Nexus 9000 Series Switches in Standalone NX-OS Mode:?CSCvk44504 Cisco NX-OS Software Release First Fixed Release for This Vulnerability First Fixed Release for All Vulnerabilities Described in the Bundle?of Advisories Prior to 7.0(3)I4 Not vulnerable 7.0(3)I7(6) 7.0(3)I4 Not vulnerable 7.0(3)I7(6) 7.0(3)I5 7.0(3)I7(5) 7.0(3)I7(6) 7.0(3)I6 7.0(3)I7(5) 7.0(3)I7(6) 7.0(3)I7 7.0(3)I7(5) 7.0(3)I7(6) 9.2 9.2(2) 9.2(2) Additional Resources For help determining the best Cisco NX-OS Software release for a Cisco Nexus Switch, which are available from the Cisco Security Advisories and Alerts page, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Customers Without Service Contracts Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC: https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Fixed Releases Customers are advised to upgrade to an appropriate release as indicated in the applicable table in this section. To help ensure a complete upgrade solution, administrators can refer to the following Recommended Releases documents.?If a security advisory recommends a later release, or major revision upgrades. When considering software upgrades,Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, Cisco recommends following the advisory guidance. Cisco MDS Series Switches Cisco Nexus 1000V for VMware Switch Cisco Nexus 3000 Series and 3500 Series Switches Cisco Nexus 5000 Series Switches Cisco Nexus 5500 Platform Switches Cisco Nexus 6000 Series Switches Cisco Nexus 7000 Series Switches Cisco Nexus 9000 Series Switches Cisco Nexus 9000 Series ACI-Mode Switches For help determining the best Cisco NX-OS Software release for Cisco UCS, to determine exposure and a complete upgrade solution. In all cases, procured from Cisco directly, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers may only download software for which they have a valid license, additional software feature sets, customers are advised to regularly consult the advisories for Cisco products, downloading",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
}
],
"trust": 0.6
},
"cve": "CVE-2019-1617",
"cvss": {
"@context": {
"cvssV2": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV2#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV2"
},
"cvssV3": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/cvss/cvssV3#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/cvssV3/"
},
"severity": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/cvss/severity#"
},
"@id": "https://www.variotdbs.pl/ref/cvss/severity"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
},
"@id": "https://www.variotdbs.pl/ref/sources"
}
},
"data": [
{
"cvssV2": [
{
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"author": "nvd@nist.gov",
"availabilityImpact": "COMPLETE",
"baseScore": 6.1,
"confidentialityImpact": "NONE",
"exploitabilityScore": 6.5,
"id": "CVE-2019-1617",
"impactScore": 6.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 1.8,
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
{
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"author": "CNVD",
"availabilityImpact": "COMPLETE",
"baseScore": 6.1,
"confidentialityImpact": "NONE",
"exploitabilityScore": 6.5,
"id": "CNVD-2020-47606",
"impactScore": 6.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.6,
"vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:C",
"version": "2.0"
},
{
"accessComplexity": "LOW",
"accessVector": "ADJACENT_NETWORK",
"authentication": "NONE",
"author": "VULHUB",
"availabilityImpact": "COMPLETE",
"baseScore": 6.1,
"confidentialityImpact": "NONE",
"exploitabilityScore": 6.5,
"id": "VHN-148289",
"impactScore": 6.9,
"integrityImpact": "NONE",
"severity": "MEDIUM",
"trust": 0.1,
"vectorString": "AV:A/AC:L/AU:N/C:N/I:N/A:C",
"version": "2.0"
}
],
"cvssV3": [
{
"attackComplexity": "LOW",
"attackVector": "ADJACENT",
"author": "nvd@nist.gov",
"availabilityImpact": "HIGH",
"baseScore": 7.4,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"exploitabilityScore": 2.8,
"id": "CVE-2019-1617",
"impactScore": 4.0,
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"trust": 2.8,
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.0"
}
],
"severity": [
{
"author": "nvd@nist.gov",
"id": "CVE-2019-1617",
"trust": 1.0,
"value": "HIGH"
},
{
"author": "ykramarz@cisco.com",
"id": "CVE-2019-1617",
"trust": 1.0,
"value": "HIGH"
},
{
"author": "NVD",
"id": "CVE-2019-1617",
"trust": 0.8,
"value": "High"
},
{
"author": "CNVD",
"id": "CNVD-2020-47606",
"trust": 0.6,
"value": "MEDIUM"
},
{
"author": "CNNVD",
"id": "CNNVD-201903-164",
"trust": 0.6,
"value": "HIGH"
},
{
"author": "VULHUB",
"id": "VHN-148289",
"trust": 0.1,
"value": "MEDIUM"
}
]
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "VULHUB",
"id": "VHN-148289"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
},
{
"db": "NVD",
"id": "CVE-2019-1617"
},
{
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"description": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/description#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "A vulnerability in the Fibre Channel over Ethernet (FCoE) N-port Virtualization (NPV) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. The vulnerability is due to an incorrect processing of FCoE packets when the fcoe-npv feature is uninstalled. An attacker could exploit this vulnerability by sending a stream of FCoE frames from an adjacent host to an affected device. An exploit could allow the attacker to cause packet amplification to occur, resulting in the saturation of interfaces and a DoS condition. Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5) and 9.2(2). Cisco NX-OS The software is vulnerable to improper control of dynamically manipulated code resources.Service operation interruption (DoS) There is a possibility of being put into a state. Cisco Nexus 9000 Series Switches is a 9000 series switch of Cisco of the United States. Cisco NX-OS Software is a set of data center-level operating system software used by switches. An attacker can use this vulnerability to cause a denial of service. \nThis issue is being tracked by Cisco bug ID CSCvk44504",
"sources": [
{
"db": "NVD",
"id": "CVE-2019-1617"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "BID",
"id": "107336"
},
{
"db": "VULHUB",
"id": "VHN-148289"
}
],
"trust": 2.52
},
"external_ids": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/external_ids#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"db": "NVD",
"id": "CVE-2019-1617",
"trust": 3.4
},
{
"db": "BID",
"id": "107336",
"trust": 2.0
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431",
"trust": 0.8
},
{
"db": "CNNVD",
"id": "CNNVD-201903-164",
"trust": 0.7
},
{
"db": "CNVD",
"id": "CNVD-2020-47606",
"trust": 0.6
},
{
"db": "VULHUB",
"id": "VHN-148289",
"trust": 0.1
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "VULHUB",
"id": "VHN-148289"
},
{
"db": "BID",
"id": "107336"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
},
{
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"id": "VAR-201903-0548",
"iot": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": true,
"sources": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "VULHUB",
"id": "VHN-148289"
}
],
"trust": 1.6506698188888889
},
"iot_taxonomy": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/iot_taxonomy#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"category": [
"Network device"
],
"sub_category": null,
"trust": 0.6
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
}
]
},
"last_update_date": "2024-11-23T22:12:08.586000Z",
"patch": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/patch#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"title": "cisco-sa-20190306-nxos-npv-dos",
"trust": 0.8,
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190306-nxos-npv-dos"
},
{
"title": "Patch for Cisco Nexus 9000 Series FCoE NPV Denial of Service Vulnerability",
"trust": 0.6,
"url": "https://www.cnvd.org.cn/patchInfo/show/231505"
},
{
"title": "Cisco NX-OS Software Security vulnerabilities",
"trust": 0.6,
"url": "http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=89839"
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
}
]
},
"problemtype_data": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/problemtype_data#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"problemtype": "CWE-913",
"trust": 1.9
}
],
"sources": [
{
"db": "VULHUB",
"id": "VHN-148289"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"references": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/references#",
"data": {
"@container": "@list"
},
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": [
{
"trust": 2.3,
"url": "http://www.securityfocus.com/bid/107336"
},
{
"trust": 2.0,
"url": "https://nvd.nist.gov/vuln/detail/cve-2019-1617"
},
{
"trust": 2.0,
"url": "https://tools.cisco.com/security/center/content/ciscosecurityadvisory/cisco-sa-20190306-nxos-npv-dos"
},
{
"trust": 0.8,
"url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2019-1617"
},
{
"trust": 0.6,
"url": "https://vigilance.fr/vulnerability/cisco-nx-os-nexus-multiple-vulnerabilities-28681"
},
{
"trust": 0.3,
"url": "http://www.cisco.com/"
},
{
"trust": 0.3,
"url": "https://bst.cloudapps.cisco.com/bugsearch/bug/cscvk44504"
}
],
"sources": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "VULHUB",
"id": "VHN-148289"
},
{
"db": "BID",
"id": "107336"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
},
{
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"sources": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#",
"data": {
"@container": "@list"
}
},
"data": [
{
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"db": "VULHUB",
"id": "VHN-148289"
},
{
"db": "BID",
"id": "107336"
},
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
},
{
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"sources_release_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_release_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2019-08-26T00:00:00",
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"date": "2019-03-11T00:00:00",
"db": "VULHUB",
"id": "VHN-148289"
},
{
"date": "2019-03-06T00:00:00",
"db": "BID",
"id": "107336"
},
{
"date": "2019-04-09T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"date": "2019-03-06T00:00:00",
"db": "CNNVD",
"id": "CNNVD-201903-164"
},
{
"date": "2019-03-11T21:29:01.027000",
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"sources_update_date": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources_update_date#",
"data": {
"@container": "@list"
}
},
"data": [
{
"date": "2020-08-24T00:00:00",
"db": "CNVD",
"id": "CNVD-2020-47606"
},
{
"date": "2019-10-09T00:00:00",
"db": "VULHUB",
"id": "VHN-148289"
},
{
"date": "2019-03-06T00:00:00",
"db": "BID",
"id": "107336"
},
{
"date": "2019-04-09T00:00:00",
"db": "JVNDB",
"id": "JVNDB-2019-002431"
},
{
"date": "2019-10-17T00:00:00",
"db": "CNNVD",
"id": "CNNVD-201903-164"
},
{
"date": "2024-11-21T04:36:56.387000",
"db": "NVD",
"id": "CVE-2019-1617"
}
]
},
"threat_type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/threat_type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "remote or local",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
}
],
"trust": 0.6
},
"title": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/title#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "Cisco NX-OS Software improper control of dynamically manipulated code resources vulnerability",
"sources": [
{
"db": "JVNDB",
"id": "JVNDB-2019-002431"
}
],
"trust": 0.8
},
"type": {
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/type#",
"sources": {
"@container": "@list",
"@context": {
"@vocab": "https://www.variotdbs.pl/ref/sources#"
}
}
},
"data": "lack of information",
"sources": [
{
"db": "CNNVD",
"id": "CNNVD-201903-164"
}
],
"trust": 0.6
}
}