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EUVD-2026-45073

🗓️ 16 Jul 2026 22:54:42Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 4 Views

Fixed potential denial of service from zero-length server name in TLS and QUIC ClientHello on h2o.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-44452
16 Jul 202622:54
attackerkb
Circl
CVE-2026-44452
17 Jul 202600:10
circl
CVE
CVE-2026-44452
16 Jul 202622:54
cve
Cvelist
CVE-2026-44452 h2o is vulnerable to heap overrun
16 Jul 202622:54
cvelist
FreeBSD
h2o -- heap overrun parsing zero-length SNI
29 May 202600:00
freebsd
Tenable Nessus
FreeBSD : h2o -- heap overrun parsing zero-length SNI (fba766f4-ccda-4e1b-8875-ab857c6a6532)
12 Jun 202600:00
nessus
NVD
CVE-2026-44452
16 Jul 202623:16
nvd
Positive Technologies
PT-2026-60603
16 Jul 202600:00
ptsecurity
Vulnrichment
CVE-2026-44452 h2o is vulnerable to heap overrun
16 Jul 202622:54
vulnrichment
[
  {
    "enisaIdVendor": [
      {
        "id": "d3841f30-5c47-3350-ac88-a2218eeee567",
        "vendor": {
          "name": "h2o"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "ecdfb71f-b7ee-3ba8-910a-60b1dd82525f",
        "product": {
          "name": "H2O",
          "vendor": {
            "name": "h2o"
          }
        },
        "product_version": "< 8dc37cb"
      }
    ]
  }
]

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16 Jul 2026 22:54Current
6Medium risk
Vulners AI Score6
CVSS 3.15.9
EPSS0.00052
4