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CVE-2026-63075

🗓️ 25 Aug 2026 13:00:04Reported by opensslType 
cve
 cve
🔗 web.nvd.nist.gov👁 11 Views

OpenSSL QUIC stack memory exhaustion via ACK-only packet retention leading to DoS.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
freebsd
FreeBSD
OpenSSL -- Multiple vulnerabilities
25 Aug 202600:00
freebsd
cvelist
Cvelist
CVE-2026-63075 QUIC ACK-only Packet Retention Can Cause Memory Exhaustion
25 Aug 202613:00
cvelist
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
Vulners
Node
OR
opensslopensslRange4.0.04.0.2
opensslopensslRange3.6.03.6.4
opensslopensslRange3.5.03.5.8
opensslopensslRange3.4.03.4.7
[
  {
    "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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25 Aug 2026 15:16Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.17.5
SSVC
11