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CVE-2026-4247 TCP: remotely exploitable DoS vector (mbuf leak)

🗓️ 26 Mar 2026 06:09:08Reported by freebsdType 
cvelist
 cvelist
🔗 www.cve.org👁 27 Views

FreeBSD CVE-2026-4247: tcp_respond leaks mbufs when no challenge ACK is sent, enabling denial of service.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
FreeBSD
FreeBSD -- TCP: remotely exploitable DoS vector (mbuf leak)
25 Mar 202600:00
freebsd
ATTACKERKB
CVE-2026-4247
26 Mar 202606:09
attackerkb
Circl
CVE-2026-4247
26 Mar 202609:08
circl
CNNVD
FreeBSD 安全漏洞
26 Mar 202600:00
cnnvd
CVE
CVE-2026-4247
26 Mar 202606:09
cve
EUVD
EUVD-2026-16128
26 Mar 202609:30
euvd
FreeBSD Advisory
FreeBSD-SA-26:06.tcp
26 Mar 202600:00
freebsd_advisory
Tenable Nessus
FreeBSD : FreeBSD -- TCP: remotely exploitable DoS vector (mbuf leak) (7aa913e9-28d1-11f1-b35e-bc241121aa0a)
26 Mar 202600:00
nessus
NVD
CVE-2026-4247
26 Mar 202607:16
nvd
Packet Storm News
FreeBSD Security Advisory - FreeBSD-SA-26:06.tcp
26 Mar 202600:00
packetstormnews
Rows per page
[
  {
    "defaultStatus": "unknown",
    "modules": [
      "tcp"
    ],
    "product": "FreeBSD",
    "vendor": "FreeBSD",
    "versions": [
      {
        "status": "affected",
        "versionType": "release",
        "version": "15.0-RELEASE",
        "lessThan": "p5"
      },
      {
        "status": "affected",
        "versionType": "release",
        "version": "14.4-RELEASE",
        "lessThan": "p1"
      },
      {
        "status": "affected",
        "versionType": "release",
        "version": "14.3-RELEASE",
        "lessThan": "p10"
      }
    ]
  }
]

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