Lucene search
+L

CVE-2026-63913 netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check

🗓️ 19 Jul 2026 14:55:17Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 26 Views

Fix netfilter conntrack: prevent invalid-sequence RST from forcing CLOSE without correct SYN direction.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
CVE
CVE-2026-63913
19 Jul 202614:55
cve
EUVD
EUVD-2026-45686
19 Jul 202614:55
euvd
NVD
CVE-2026-63913
19 Jul 202616:17
nvd
OSV
CVE-2026-63913 netfilter: conntrack: tcp: do not force CLOSE on invalid-seq RST without direction check
19 Jul 202614:55
osv
OSV
DEBIAN-CVE-2026-63913
19 Jul 202616:17
osv
OSV
UBUNTU-CVE-2026-63913
20 Jul 202600:00
osv
Positive Technologies
PT-2026-61230
19 Jul 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nf_conntrack_proto_tcp.c"
    ],
    "versions": [
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "2006979a15af5404bf932a325357683c0bac1656",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "6476c17d536dbd321c073242e762ddb2713a1238",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "f5547bebc416d56f56fb5b86dc20aabfa42165a0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "2bb6d82b586ea5a4cb73bbdd6b7432e96096bc77",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "f206def4e86d810f927ba1d8e322ea72b29bce58",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "b98ab51c45c5608a1c19ce7fd17a3032469bb83f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "d67c6adee8d1b65330d0174c4c367faba14e80a8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9fb9cbb1082d6b31fb45aa1a14432449a0df6cf1",
        "lessThan": "bed6e04be8e6b9133d8b16d5a42d0e0ce674fa9a",
        "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/netfilter/nf_conntrack_proto_tcp.c"
    ],
    "versions": [
      {
        "version": "2.6.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation