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CVE-2026-98393

🗓️ 14 Oct 2026 13:25:56Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 3 Views

UDP length overflow in Linux kernel when IP_MTU_DISCOVER is set to IP_PMTUDISC_PROBE.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-98393
14 Oct 202618:27
–circl
cvelist
Cvelist
CVE-2026-98393 net: ipv4: Fix UDP length overflow with PMTU discover and big MTU
14 Oct 202613:25
–cvelist
euvd
EUVD
EUVD-2026-101042
14 Oct 202613:25
–euvd
nvd
NVD
CVE-2026-98393
14 Oct 202614:17
–nvd
ubuntucve
UbuntuCve
CVE-2026-98393
14 Oct 202600:00
–ubuntucve
Vulners
CNA
Node
OR
linuxlinux_kernelRange3.13–6.18.53
linuxlinux_kernelRange6.19.0–7.2.7
linuxlinux_kernelRange7.3.0–7.3-rc3
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/ip_output.c"
    ],
    "versions": [
      {
        "version": "daba287b299ec7a2c61ae3a714920e90e8396ad5",
        "lessThan": "83fedc4741210f75be8ca5b487985a242bf6f18d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "daba287b299ec7a2c61ae3a714920e90e8396ad5",
        "lessThan": "81f540827d243b8dad76c1f44e70ea31719f393c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "daba287b299ec7a2c61ae3a714920e90e8396ad5",
        "lessThan": "b83641e0ab8b20eefcc4cdc5a059f897375291a2",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/ip_output.c"
    ],
    "versions": [
      {
        "version": "3.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.13",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.53",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.7",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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14 Oct 2026 14:17Current
6Medium risk
Vulners AI Score6
3