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CVE-2026-102033 Junos OS and Junos OS Evolved: An attacker causes denial of service when MC-LAG MAC synchronization is enabled

🗓️ 14 Oct 2026 16:50:18Reported by juniperType 
cvelist
 cvelist
🔗 www.cve.org👁 17 Views

Improper Validation of Specified Quantity in Junos OS l2ald causes DoS via ICCP MC-LAG.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-102033
14 Oct 202622:19
–circl
cve
CVE
CVE-2026-102033
14 Oct 202616:50
–cve
euvd
EUVD
EUVD-2026-101358
14 Oct 202616:50
–euvd
nvd
NVD
CVE-2026-102033
14 Oct 202617:17
–nvd
ptsecurity
Positive Technologies
PT-2026-113874
14 Oct 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-102033 Junos OS and Junos OS Evolved: An attacker causes denial of service when MC-LAG MAC synchronization is enabled
14 Oct 202616:50
–vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "23.2R2-S7.7",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      },
      {
        "lessThan": "23.4R2-S8.13",
        "status": "affected",
        "version": "23.4",
        "versionType": "custom"
      },
      {
        "lessThan": "24.2R2-S5.5",
        "status": "affected",
        "version": "24.2",
        "versionType": "custom"
      },
      {
        "lessThan": "24.4R2-S5",
        "status": "affected",
        "version": "24.4",
        "versionType": "custom"
      },
      {
        "lessThan": "25.2R2-S2",
        "status": "affected",
        "version": "25.2",
        "versionType": "custom"
      },
      {
        "lessThan": "25.4R1-S3",
        "status": "affected",
        "version": "25.4",
        "versionType": "custom"
      },
      {
        "lessThan": "26.2R1-S2",
        "status": "affected",
        "version": "26.2",
        "versionType": "custom"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS Evolved",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "23.2R2-S7.7-EVO",
        "status": "affected",
        "version": "0",
        "versionType": "custom"
      },
      {
        "lessThan": "23.4R2-S8.11-EVO",
        "status": "affected",
        "version": "23.4",
        "versionType": "custom"
      },
      {
        "lessThan": "24.2R2-S5.6-EVO",
        "status": "affected",
        "version": "24.2",
        "versionType": "custom"
      },
      {
        "lessThan": "24.4R2-S5-EVO",
        "status": "affected",
        "version": "24.4",
        "versionType": "custom"
      },
      {
        "lessThan": "25.2R2-S2-EVO",
        "status": "affected",
        "version": "25.2",
        "versionType": "custom"
      },
      {
        "lessThan": "25.4R1-S3-EVO",
        "status": "affected",
        "version": "25.4",
        "versionType": "custom"
      },
      {
        "lessThan": "26.2R1-S2-EVO",
        "status": "affected",
        "version": "26.2",
        "versionType": "custom"
      },
      {
        "status": "affected",
        "version": "23.4X100",
        "versionType": "custom"
      },
      {
        "lessThan": "25.2X100-D35-EVO",
        "status": "affected",
        "version": "25.2X100",
        "versionType": "custom"
      },
      {
        "lessThan": "25.4X300-D40-EVO",
        "status": "affected",
        "version": "25.4X300",
        "versionType": "custom"
      }
    ]
  }
]

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14 Oct 2026 16:50Current
CVSS 3.16.5
CVSS 47.1
SSVC
17