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CVE-2026-0203

🗓️ 15 Jan 2026 20:17:24Reported by juniperType 
cve
 cve
🔗 web.nvd.nist.gov👁 29 Views

Unauthenticated attacker sends malformed ICMP to crash and restart Junos OS FPC, causing a denial of service.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
CVE-2026-0203
15 Jan 202620:17
attackerkb
cnnvd
Juniper Networks Junos OS security vulnerabilities
15 Jan 202600:00
cnnvd
cvelist
CVE-2026-0203 Junos OS: Receipt of a specifically malformed ICMP packet causes an FPC restart
15 Jan 202620:17
cvelist
euvd
EUVD-2026-2681
15 Jan 202620:17
euvd
ncsc
Vulnerabilities fixed in Juniper Networks JunOS
16 Jan 202610:07
ncsc
nvd
CVE-2026-0203
15 Jan 202621:16
nvd
osv
CVE-2026-0203
15 Jan 202621:16
osv
ptsecurity
PT-2026-3107
15 Jan 202600:00
ptsecurity
redhatcve
CVE-2026-0203
16 Jan 202620:18
redhatcve
vulnrichment
CVE-2026-0203 Junos OS: Receipt of a specifically malformed ICMP packet causes an FPC restart
15 Jan 202620:17
vulnrichment
Rows per page
NVD
Vulners
Node
OR
juniperjunosRange<21.2
juniperjunosMatch21.2-
juniperjunosMatch21.2r1
juniperjunosMatch21.2r1-s1
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juniperjunosMatch21.2r3
juniperjunosMatch21.2r3-s1
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juniperjunosMatch21.2r3-s3
juniperjunosMatch21.2r3-s4
juniperjunosMatch21.2r3-s5
juniperjunosMatch21.2r3-s6
juniperjunosMatch21.2r3-s7
juniperjunosMatch21.2r3-s8
juniperjunosMatch21.4-
juniperjunosMatch21.4r1
juniperjunosMatch21.4r1-s1
juniperjunosMatch21.4r1-s2
juniperjunosMatch21.4r2
juniperjunosMatch21.4r2-s1
juniperjunosMatch21.4r2-s2
juniperjunosMatch21.4r3
juniperjunosMatch21.4r3-s1
juniperjunosMatch21.4r3-s2
juniperjunosMatch21.4r3-s3
juniperjunosMatch21.4r3-s4
juniperjunosMatch21.4r3-s5
juniperjunosMatch21.4r3-s6
juniperjunosMatch21.4r3-s7
juniperjunosMatch21.4r3-s8
juniperjunosMatch21.4r3-s9
juniperjunosMatch22.2-
juniperjunosMatch22.2r1
juniperjunosMatch22.2r1-s1
juniperjunosMatch22.2r1-s2
juniperjunosMatch22.2r2
juniperjunosMatch22.2r2-s1
juniperjunosMatch22.2r2-s2
juniperjunosMatch22.2r3
juniperjunosMatch22.2r3-s1
juniperjunosMatch22.2r3-s2
juniperjunosMatch22.2r3-s3
juniperjunosMatch22.2r3-s4
juniperjunosMatch22.2r3-s5
juniperjunosMatch22.2r3-s6
juniperjunosMatch22.3-
juniperjunosMatch22.3r1
juniperjunosMatch22.3r1-s1
juniperjunosMatch22.3r1-s2
juniperjunosMatch22.3r2
juniperjunosMatch22.3r2-s1
juniperjunosMatch22.3r2-s2
juniperjunosMatch22.3r3
juniperjunosMatch22.3r3-s1
juniperjunosMatch22.3r3-s2
juniperjunosMatch22.3r3-s3
juniperjunosMatch22.4-
juniperjunosMatch22.4r1
juniperjunosMatch22.4r1-s1
juniperjunosMatch22.4r1-s2
juniperjunosMatch22.4r2
juniperjunosMatch22.4r2-s1
juniperjunosMatch22.4r2-s2
juniperjunosMatch22.4r3
juniperjunosMatch22.4r3-s1
juniperjunosMatch22.4r3-s2
juniperjunosMatch22.4r3-s3
juniperjunosMatch22.4r3-s4
juniperjunosMatch23.2-
juniperjunosMatch23.2r1
juniperjunosMatch23.2r1-s1
juniperjunosMatch23.2r1-s2
juniperjunosMatch23.2r2
juniperjunosMatch23.2r2-s1
juniperjunosMatch23.2r2-s2
juniperjunosMatch23.4-
juniperjunosMatch23.4r1
juniperjunosMatch23.4r1-s1
juniperjunosMatch23.4r1-s2
juniperjunosMatch23.4r2
juniperjunosMatch23.4r2-s1
juniperjunosMatch23.4r2-s2
juniperjunosMatch24.2-
juniperjunosMatch24.2r1
juniperjunosMatch24.2r1-s1
juniperjunosMatch24.2r2
[
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "21.2R3-S9",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "21.4R3-S10",
        "status": "affected",
        "version": "21.4",
        "versionType": "semver"
      },
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        "status": "affected",
        "version": "22.2",
        "versionType": "semver"
      },
      {
        "lessThan": "22.3R3-S4",
        "status": "affected",
        "version": "22.3",
        "versionType": "semver"
      },
      {
        "lessThan": "22.4R3-S5",
        "status": "affected",
        "version": "22.4",
        "versionType": "semver"
      },
      {
        "lessThan": "23.2R2-S3",
        "status": "affected",
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      },
      {
        "lessThan": "23.4R2-S3",
        "status": "affected",
        "version": "23.4",
        "versionType": "semver"
      },
      {
        "lessThan": "24.2R1-S2, 24.2R2",
        "status": "affected",
        "version": "24.2",
        "versionType": "semver"
      }
    ]
  }
]

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17 Jun 2026 10:10Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.16.5
CVSS 47.1
EPSS0.00249
SSVC
29