CVE-2026-63975

🗓️ 19 Jul 2026 14:56:00Reported by LinuxType

Fix crash in Bluetooth L2CAP on destination CID handling by discarding channels asynchronously.

Reporter	Title	Published	Views	Family All 24
Cvelist	CVE-2026-63975 Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp	19 Jul 202614:56	–	cvelist
Debian CVE	CVE-2026-63975	19 Jul 202614:56	–	debiancve
EUVD	EUVD-2026-45748	19 Jul 202614:56	–	euvd
NVD	CVE-2026-63975	19 Jul 202616:17	–	nvd
OSV	BELL-CVE-2026-63975	22 Jul 202606:04	–	osv
OSV	DEBIAN-CVE-2026-63975	19 Jul 202616:17	–	osv
OSV	OESA-2026-3204 kernel security update	1 Aug 202616:44	–	osv
OSV	OESA-2026-3303 kernel security update	7 Aug 202602:45	–	osv
OSV	ROOT-OS-UBUNTU-2204-CVE-2026-63975 CVE-2026-63975 in linux - Patched by Root	6 Aug 202607:51	–	osv
OSV	UBUNTU-CVE-2026-63975	20 Jul 202600:00	–	osv

Vulners

CNA

Node

linux linux_kernelRange5.7–5.10.259

linux linux_kernelRange5.11.0–5.15.210

linux linux_kernelRange5.16.0–6.1.176

linux linux_kernelRange6.2.0–6.6.143

linux linux_kernelRange6.7.0–6.12.93

linux linux_kernelRange6.13.0–6.18.35

linux linux_kernelRange6.19.0–7.0.12

linux linux_kernelRange7.1.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/bluetooth/l2cap_core.c"
    ],
    "versions": [
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "3c8eaa91eb433c450426539290be4ffe282e9f00",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "ecfed1e0d8efecad6737a0d83e21d2fd021d8c48",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "e6833e737a51db1e5ea0401322acf5e22abd8be6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "6319b38fe69f56ed95680ade485b957a53fff642",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "291eec1041c918c460dc9702e44edd17794b4a4b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "41e29548b5e8b5e5fcf708786b3bea67cab107fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "d153b8898c0051eb8b6a083b35cbe304a5886bd5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "15f02b91056253e8cdc592888f431da0731337b8",
        "lessThan": "41c2713b204e6cb6a94587bc6bf6935107df5479",
        "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/bluetooth/l2cap_core.c"
    ],
    "versions": [
      {
        "version": "5.7",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.7",
        "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"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b
git	www.git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48
git	www.git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6
git	www.git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642
git	www.git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00
git	www.git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479
git	www.git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa
git	www.git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5

05 Aug 2026 12:37Current

5.3Medium risk

Vulners AI Score5.3

CVSS 3.18.8

EPSS0.00345