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CVE-2026-33780 Junos OS and Junos OS Evolved: In an EVPN-MPLS scenario churn of ESI routes causes a memory leak in l2ald

🗓️ 09 Apr 2026 21:29:20Reported by juniperType 
cvelist
 cvelist
🔗 www.cve.org👁 16 Views

CVE-2026-33780: EVPN-MPLS ESI churn leaks memory in l2ald, causing DoS on Junos platforms.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-33780
9 Apr 202621:29
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Circl
CVE-2026-33780
9 Apr 202618:00
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CNNVD
Juniper Networks Junos OS和Juniper Networks Junos OS Evolved 安全漏洞
9 Apr 202600:00
cnnvd
CVE
CVE-2026-33780
9 Apr 202621:29
cve
EUVD
EUVD-2026-21090
10 Apr 202600:30
euvd
NVD
CVE-2026-33780
9 Apr 202622:16
nvd
Positive Technologies
PT-2026-31750
9 Apr 202600:00
ptsecurity
RedhatCVE
CVE-2026-33780
13 Apr 202619:23
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Vulnrichment
CVE-2026-33780 Junos OS and Junos OS Evolved: In an EVPN-MPLS scenario churn of ESI routes causes a memory leak in l2ald
9 Apr 202621:29
vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "22.4R3-S5",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "23.2R2-S3",
        "status": "affected",
        "version": "23.2",
        "versionType": "semver"
      },
      {
        "lessThan": "23.4R2-S4",
        "status": "affected",
        "version": "23.4",
        "versionType": "semver"
      },
      {
        "lessThan": "24.2R2",
        "status": "affected",
        "version": "24.2",
        "versionType": "semver"
      }
    ]
  },
  {
    "defaultStatus": "unaffected",
    "product": "Junos OS Evolved",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "22.4R3-S5-EVO",
        "status": "affected",
        "version": "all version prior to",
        "versionType": "semver"
      },
      {
        "lessThan": "23.2R2-S3-EVO",
        "status": "affected",
        "version": "23.2",
        "versionType": "semver"
      },
      {
        "lessThan": "23.4R2-S4-EVO",
        "status": "affected",
        "version": "23.4",
        "versionType": "semver"
      },
      {
        "lessThan": "24.2R2-EVO",
        "status": "affected",
        "version": "24.2",
        "versionType": "semver"
      }
    ]
  }
]

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09 Apr 2026 21:29Current
CVSS 3.16.5
CVSS 47.1
EPSS0.00021
16