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CVE-2026-44452

🗓️ 16 Jul 2026 22:54:42Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 14 Views

CVE-2026-44452: h2o may crash on zero-length servername in TLS or QUIC ClientHello before fix.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-44452
16 Jul 202622:54
attackerkb
Circl
CVE-2026-44452
17 Jul 202600:10
circl
Cvelist
CVE-2026-44452 h2o is vulnerable to heap overrun
16 Jul 202622:54
cvelist
EUVD
EUVD-2026-45073
16 Jul 202622:54
euvd
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
OSV
UBUNTU-CVE-2026-44452
17 Jul 202600:00
osv
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
Rows per page
Vulners
Node
h2oh2oRange<8dc37cb
[
  {
    "vendor": "h2o",
    "product": "h2o",
    "versions": [
      {
        "version": "< 8dc37cb",
        "status": "affected"
      }
    ]
  }
]

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17 Jul 2026 18:37Current
6Medium risk
Vulners AI Score6
CVSS 3.15.9
EPSS0.00052
SSVC
14