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CVE-2026-73455

🗓️ 16 Sep 2026 09:46:15Reported by AristaType 
cve
 cve
🔗 web.nvd.nist.gov👁 40 Views

Arista EOS OSPFv3 agent DoS via specially crafted packet causing restart.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
arista
Arista
Security Advisory 0148
2 Sep 202600:00
–arista
arista
Arista
Security Advisory 0173
9 Sep 202600:00
–arista
circl
Circl
CVE-2026-73455
16 Sep 202611:29
–circl
cvelist
Cvelist
CVE-2026-73455 Security Advisory 0173
16 Sep 202609:46
–cvelist
euvd
EUVD
EUVD-2026-80587
16 Sep 202609:46
–euvd
nvd
NVD
CVE-2026-73455
16 Sep 202610:16
–nvd
ptsecurity
Positive Technologies
PT-2026-93412
16 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-73455: Improper Handling of Length Parameter Inconsistency
16 Sep 202600:00
–rapid7
vulnrichment
Vulnrichment
CVE-2026-73455 Security Advisory 0173
16 Sep 202609:46
–vulnrichment
[
  {
    "vendor": "Arista Networks",
    "product": "EOS",
    "defaultStatus": "unaffected",
    "versions": [
      {
        "version": "1.0.0",
        "lessThan": "4.33.0F",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "4.33.0F",
        "lessThanOrEqual": "4.33.8M",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "4.34.0F",
        "lessThanOrEqual": "4.34.6M",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "4.35.0F",
        "lessThanOrEqual": "4.35.4M",
        "status": "affected",
        "versionType": "custom"
      },
      {
        "version": "4.36.0F",
        "lessThanOrEqual": "4.36.0.1F",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]

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16 Sep 2026 19:09Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
CVSS 48.9
EPSS0.00497
SSVC
40