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EUVD-2021-2840

🗓️ 03 Oct 2025 20:07:09Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 25 Views

Traffic loop issue in EVPN/VXLAN may cause Denial of Service in specific Junos OS versions.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2021-0221
13 Jan 202117:00
–attackerkb
bdu_fstec
BDU FSTEC
Junos EVPN/VXLAN DoS
25 Feb 202100:00
–bdu_fstec
cnnvd
CNNVD
Juniper Networks Junos OS QFX Security Vulnerability
13 Jan 202100:00
–cnnvd
cve
CVE
CVE-2021-0221
15 Jan 202117:36
–cve
cvelist
Cvelist
CVE-2021-0221 Junos OS: QFX Series: Traffic loop Denial of Service (DoS) upon receipt of specific IP multicast traffic
15 Jan 202117:36
–cvelist
nessus
Tenable Nessus
Juniper Junos OS DoS (JSA11111)
14 Jan 202100:00
–nessus
ncsc
NCSC
Vulnerability fixed in Juniper QFX switches
20 Jan 202100:00
–ncsc
nvd
NVD
CVE-2021-0221
15 Jan 202118:15
–nvd
osv_cve
osv_cve
CVE-2021-0221
15 Jan 202118:15
–osv_cve
prion
Prion
Design/Logic Flaw
15 Jan 202118:15
–prion
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "8a451e77-eb66-343e-b040-564e82f15419",
        "vendor": {
          "name": "Juniper Networks"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "1d22e52d-d389-3038-a908-63c56e68461a",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "18.2 <18.2R3-S6"
      },
      {
        "id": "313360de-a7f6-3c37-8481-da0bdd520e4c",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "20.2 <20.2R1-S2, 20.2R2"
      },
      {
        "id": "3a45dbd2-e1d7-3d90-bf16-4de7ace1e57b",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "unspecified <17.3R3-S10"
      },
      {
        "id": "4646bd50-46e2-3b31-a4e2-c367f3c7b13f",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "19.2 <19.2R1-S5, 19.2R3-S1"
      },
      {
        "id": "9994a819-eb5f-33df-8069-53bb206b0e35",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "19.4 <19.4R2-S2, 19.4R3"
      },
      {
        "id": "9cefbe76-fcb7-3d8a-858e-13d8d69d8780",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "17.4 <17.4R2-S12, 17.4R3-S3"
      },
      {
        "id": "bc6d2b09-c420-3d49-8e5a-43ce542acd24",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "18.3 <18.3R3-S4"
      },
      {
        "id": "ceec6aa2-cf7a-39f9-b1e2-0eb69ea7c08c",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "19.3 <19.3R2-S5, 19.3R3"
      },
      {
        "id": "d07fdb0d-df01-36c8-8320-2051530c0452",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "18.1 <18.1R3-S11"
      },
      {
        "id": "d86977fc-94eb-3c7f-92ba-980f88c39ec3",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "19.1 <19.1R1-S6, 19.1R2-S2, 19.1R3-S3"
      },
      {
        "id": "e36a0065-e6b3-3184-b979-efe5b00d4050",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "18.4 <18.4R2-S5, 18.4R3-S5"
      },
      {
        "id": "f6a06b66-77e9-33bb-8032-4c448bb470cb",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "20.1 <20.1R2"
      }
    ]
  }
]

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03 Oct 2025 20:07Current
6.7Medium risk
Vulners AI Score6.7
CVSS 3.16.5
CVSS 22.9
EPSS0.00515
25