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CVE-2026-21901

🗓️ 09 Jul 2026 21:01:31Reported by juniperType 
cve
 cve
🔗 web.nvd.nist.gov👁 23 Views

CVE-2026-21901: Local attacker crashes mgd via secure shell setting change, causing DoS on Junos OS and Junos OS Evolved.

Related
Detection
Affected
Refs
Vulners
Node
OR
OR
juniper_networksjunos_osRange22.322.3R3-S5
juniper_networksjunos_osRange22.422.4R3-S10
juniper_networksjunos_osRange23.223.2R2-S7
juniper_networksjunos_osRange23.423.4R2-S8
OR
juniper_networksjunos_os_evolvedRange23.223.2R2-S7-EVO
juniper_networksjunos_os_evolvedRange23.423.4R2-S8-EVO
[
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "22.3R3-S5",
        "status": "affected",
        "version": "22.3",
        "versionType": "custom"
      },
      {
        "lessThan": "22.4R3-S10",
        "status": "affected",
        "version": "22.4",
        "versionType": "custom"
      },
      {
        "lessThan": "23.2R2-S7",
        "status": "affected",
        "version": "23.2",
        "versionType": "custom"
      },
      {
        "lessThan": "23.4R2-S8",
        "status": "affected",
        "version": "23.4",
        "versionType": "custom"
      },
      {
        "lessThan": "22.3R1",
        "status": "unaffected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS Evolved",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "23.2R2-S7-EVO",
        "status": "affected",
        "version": "23.2",
        "versionType": "custom"
      },
      {
        "lessThan": "23.4R2-S8-EVO",
        "status": "affected",
        "version": "23.4",
        "versionType": "custom"
      },
      {
        "lessThan": "22.3R1-EVO",
        "status": "unaffected",
        "version": "0",
        "versionType": "custom"
      }
    ]
  }
]

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10 Jul 2026 17:49Current
6.1Medium risk
Vulners AI Score6.1
CVSS 3.14.4
CVSS 46.7
EPSS0.00118
SSVC
23