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CVE-2026-18798 QUIC Server May Trigger Double Free When Processing INITIAL Packet

🗓️ 25 Aug 2026 12:59:04Reported by opensslType 
cvelist
 cvelist
🔗 www.cve.org👁 8 Views

Double free in OpenSSL QUIC server when processing INITIAL packet with short DCID causes DoS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-18798
25 Aug 202612:59
cve
debiancve
Debian CVE
CVE-2026-18798
25 Aug 202612:59
debiancve
euvd
EUVD
EUVD-2026-65480
25 Aug 202612:59
euvd
nvd
NVD
CVE-2026-18798
25 Aug 202613:17
nvd
ptsecurity
Positive Technologies
PT-2026-81300
25 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-18798
25 Aug 202616:40
redhatcve
ubuntucve
UbuntuCve
CVE-2026-18798
25 Aug 202600:00
ubuntucve
vulnrichment
Vulnrichment
CVE-2026-18798 QUIC Server May Trigger Double Free When Processing INITIAL Packet
25 Aug 202612:59
vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "product": "OpenSSL",
    "vendor": "OpenSSL",
    "versions": [
      {
        "lessThan": "4.0.2",
        "status": "affected",
        "version": "4.0.0",
        "versionType": "semver"
      },
      {
        "lessThan": "3.6.4",
        "status": "affected",
        "version": "3.6.0",
        "versionType": "semver"
      },
      {
        "lessThan": "3.5.8",
        "status": "affected",
        "version": "3.5.0",
        "versionType": "semver"
      }
    ]
  }
]

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