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EUVD-2026-2696

🗓️ 15 Jan 2026 20:22:44Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 2 Views

Unauthenticated IS-IS neighbor can trigger rpd memory leak, causing DoS in Junos OS and Junos OS Evolved.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-21909
15 Jan 202620:22
attackerkb
Circl
CVE-2026-21909
15 Jan 202621:42
circl
CNNVD
Juniper Networks Junos OS and Juniper Networks Junos OS Evolved security vulnerabilities
15 Jan 202600:00
cnnvd
CVE
CVE-2026-21909
15 Jan 202620:22
cve
Cvelist
CVE-2026-21909 Junos OS and Junos OS Evolved: Receipt of specific IS-IS update packet causes memory leak leading to RPD crash
15 Jan 202620:22
cvelist
NCSC
Vulnerabilities fixed in Juniper Networks JunOS
16 Jan 202610:07
ncsc
NVD
CVE-2026-21909
15 Jan 202621:16
nvd
OSV
CVE-2026-21909
15 Jan 202621:16
osv
Positive Technologies
PT-2026-3123
15 Jan 202600:00
ptsecurity
RedhatCVE
CVE-2026-21909
16 Jan 202621:33
redhatcve
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "c374a9b7-a980-3494-8141-93e80d295aa5",
        "vendor": {
          "name": "Juniper Networks"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "05f91988-e271-34ca-8f07-8ee9abe4d5ab",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "23.2 <23.2R2"
      },
      {
        "id": "234c6d84-7030-3fa7-aa84-d12323420062",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "24.1 <24.1R2"
      },
      {
        "id": "4b3b932d-4910-3ea4-8dd8-a293dbf3f4be",
        "product": {
          "name": "Junos OS Evolved"
        },
        "product_version": "24.1 <24.1R2-EVO"
      },
      {
        "id": "69b34694-c428-35b0-8dce-bad1480828c5",
        "product": {
          "name": "Junos OS Evolved"
        },
        "product_version": "23.2 <23.2R2-EVO"
      },
      {
        "id": "98d44221-58bd-32f1-a645-c5608344198f",
        "product": {
          "name": "Junos OS Evolved"
        },
        "product_version": "23.4 <23.4R1-S2-EVO, 23.4R2-EVO"
      },
      {
        "id": "9bf60ace-3845-30a5-8137-6ee281275d5e",
        "product": {
          "name": "Junos OS"
        },
        "product_version": ""
      },
      {
        "id": "a0d7c17c-e009-3fb9-80f9-4c4a9a181bd0",
        "product": {
          "name": "Junos OS Evolved"
        },
        "product_version": ""
      },
      {
        "id": "cdc8aaa5-4a93-3c12-b5dc-f9448ea41c64",
        "product": {
          "name": "Junos OS"
        },
        "product_version": "23.4 <23.4R1-S2, 23.4R2"
      }
    ]
  }
]

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15 Jan 2026 20:52Current
6.6Medium risk
Vulners AI Score6.6
CVSS 47.1
CVSS 3.16.5
EPSS0.00013
SSVC
2