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CVE-2026-63075 QUIC ACK-only Packet Retention Can Cause Memory Exhaustion

🗓️ 25 Aug 2026 13:00:04Reported by opensslType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

OpenSSL QUIC retains ACK-only packet metadata enabling memory exhaustion DoS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
freebsd
FreeBSD
OpenSSL -- Multiple vulnerabilities
25 Aug 202600:00
freebsd
cve
CVE
CVE-2026-63075
25 Aug 202613:00
cve
debiancve
Debian CVE
CVE-2026-63075
25 Aug 202613:00
debiancve
euvd
EUVD
EUVD-2026-65485
25 Aug 202613:00
euvd
nvd
NVD
CVE-2026-63075
25 Aug 202613:19
nvd
ptsecurity
Positive Technologies
PT-2026-81306
25 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-63075
25 Aug 202616:26
redhatcve
ubuntucve
UbuntuCve
CVE-2026-63075
25 Aug 202600:00
ubuntucve
vulnrichment
Vulnrichment
CVE-2026-63075 QUIC ACK-only Packet Retention Can Cause Memory Exhaustion
25 Aug 202613:00
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"
      },
      {
        "lessThan": "3.4.7",
        "status": "affected",
        "version": "3.4.0",
        "versionType": "semver"
      }
    ]
  }
]

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