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CVE-2026-80588

🗓️ 26 Aug 2026 14:37:42Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 29 Views

MPTCP in Linux kernel fails to reclaim forward memory on RX errors, enabling DoS.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-80588
27 Aug 202609:02
circl
cvelist
Cvelist
CVE-2026-80588 mptcp: reclaim forward-allocated memory on RX path errors
26 Aug 202614:37
cvelist
debiancve
Debian CVE
CVE-2026-80588
26 Aug 202614:37
debiancve
euvd
EUVD
EUVD-2026-66503
27 Aug 202606:31
euvd
nvd
NVD
CVE-2026-80588
26 Aug 202615:17
nvd
osv
OSV
BELL-CVE-2026-80588 CVE-2026-80588 does not affect BellSoft software
29 Aug 202606:04
osv
osv
OSV
DEBIAN-CVE-2026-80588
26 Aug 202615:17
osv
osv
OSV
UBUNTU-CVE-2026-80588
26 Aug 202615:17
osv
ptsecurity
Positive Technologies
PT-2026-82204
26 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-80588
27 Aug 202615:02
redhatcve
Rows per page
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.18.356.18.46
OR
linuxlinux_kernelRange6.196.18.46
linuxlinux_kernelRange6.19.07.1.10
linuxlinux_kernelRange7.2.0
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mptcp/protocol.c"
    ],
    "versions": [
      {
        "version": "a84164847b1e0a106ebc46821e5d2f9b775c9dc8",
        "lessThan": "473f1a5ab2abc98dd9e74b95b9c23c66c47535cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9db5b3cec4ec1c0cd3239689f5c8653d691a1754",
        "lessThan": "8277f48a06d3aa1441f6d0b6998ccc0360d30ed8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9db5b3cec4ec1c0cd3239689f5c8653d691a1754",
        "lessThan": "41b49a8b914ec7dcb03eae93fb27f3c464078644",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.18.35",
        "lessThan": "6.18.46",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/mptcp/protocol.c"
    ],
    "versions": [
      {
        "version": "6.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.46",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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27 Aug 2026 06:17Current
5.3Medium risk
Vulners AI Score5.3
CVSS 3.17.5
EPSS0.00339
29