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CVE-2026-21913

🗓️ 15 Jan 2026 20:25:03Reported by juniperType 
cve
 cve
🔗 web.nvd.nist.gov📰️ 1 Media mentions👁 7 Views

Unauthenticated traffic to Junos OS EX4000 causes IDM init error and device reboot.

Related
Detection
Affected
Refs
Social
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-21913
15 Jan 202620:25
attackerkb
Circl
CVE-2026-21913
15 Jan 202621:38
circl
CNNVD
Juniper Networks Junos OS security vulnerabilities
15 Jan 202600:00
cnnvd
Cvelist
CVE-2026-21913 Junos OS: EX4000: A high volume of traffic destined to the device leads to a crash and restart
15 Jan 202620:25
cvelist
EUVD
EUVD-2026-2688
15 Jan 202620:25
euvd
NCSC
Vulnerabilities fixed in Juniper Networks JunOS
16 Jan 202610:07
ncsc
NVD
CVE-2026-21913
15 Jan 202621:16
nvd
OSV
CVE-2026-21913
15 Jan 202621:16
osv
Positive Technologies
PT-2026-3127
15 Jan 202600:00
ptsecurity
RedhatCVE
CVE-2026-21913
16 Jan 202621:33
redhatcve
Rows per page
NVD
Vulners
Node
juniperjunosMatch24.4-
OR
juniperjunosMatch24.4r1
OR
juniperjunosMatch24.4r1-s2
OR
juniperjunosMatch24.4r1-s3
OR
juniperjunosMatch25.2-
OR
juniperjunosMatch25.2r1
OR
juniperjunosMatch25.2r1-s1
OR
juniperjunosMatch25.2r2
AND
[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "EX4000-48T",
      "EX4000-48P",
      "EX4000-48MP"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "24.4R2",
        "status": "affected",
        "version": "24.4",
        "versionType": "semver"
      },
      {
        "lessThan": "25.2R1-S2, 25.2R2",
        "status": "affected",
        "version": "25.2",
        "versionType": "semver"
      },
      {
        "lessThan": "24.4R1",
        "status": "unaffected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

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23 Jan 2026 19:40Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.17.5
CVSS 48.7
EPSS0.00021
SSVC
7