CVE-2026-63960

🗓️ 19 Jul 2026 14:55:50Reported by LinuxType

Kernel fix: wcove_read_rx_buffer clamps RX bytes to pd_message size and stores only the low byte.

Reporter	Title	Published	Views	Family All 8
ATTACKERKB	CVE-2026-63960	19 Jul 202614:55	–	attackerkb
Cvelist	CVE-2026-63960 usb: typec: wcove: don't write past struct pd_message in wcove_read_rx_buffer()	19 Jul 202614:55	–	cvelist
EUVD	EUVD-2026-45733	19 Jul 202614:55	–	euvd
NVD	CVE-2026-63960	19 Jul 202616:17	–	nvd
OSV	CVE-2026-63960 usb: typec: wcove: don't write past struct pd_message in wcove_read_rx_buffer()	19 Jul 202614:55	–	osv
OSV	DEBIAN-CVE-2026-63960	19 Jul 202616:17	–	osv
OSV	UBUNTU-CVE-2026-63960	20 Jul 202600:00	–	osv
Positive Technologies	PT-2026-61277	19 Jul 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange4.15–5.10.259

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": [
      "drivers/usb/typec/tcpm/wcove.c"
    ],
    "versions": [
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "3e632098d0521257ea965bbd6fde807d9bee5c8a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "f2a1edc0bd142edabc6c85d88713f2bc178dd317",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "6899f5b6d7b83ce79a3d331dc61dd31bf73f9c22",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "5cd0e7ac4eefbdb330f8c72694fe74e63df65552",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "d0e4b8b3c6b7607a16932556eaaca5d5cf69f192",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "e94933dc41b87503bf585c8c6d53d740620eceb9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "3f9d50c8b02b4af0646aa892465080f9061fc89c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "3c4fb9f169214290ec9a943907321e6265b36f65",
        "lessThan": "4af7ad0e6d7aa4403dbb1dac7b9659b0421efcaa",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/usb/typec/tcpm/wcove.c"
    ],
    "versions": [
      {
        "version": "4.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.15",
        "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"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/4af7ad0e6d7aa4403dbb1dac7b9659b0421efcaa
git	www.git.kernel.org/stable/c/6899f5b6d7b83ce79a3d331dc61dd31bf73f9c22
git	www.git.kernel.org/stable/c/e94933dc41b87503bf585c8c6d53d740620eceb9
git	www.git.kernel.org/stable/c/3f9d50c8b02b4af0646aa892465080f9061fc89c
git	www.git.kernel.org/stable/c/3e632098d0521257ea965bbd6fde807d9bee5c8a
git	www.git.kernel.org/stable/c/5cd0e7ac4eefbdb330f8c72694fe74e63df65552
git	www.git.kernel.org/stable/c/d0e4b8b3c6b7607a16932556eaaca5d5cf69f192
git	www.git.kernel.org/stable/c/f2a1edc0bd142edabc6c85d88713f2bc178dd317

20 Jul 2026 07:16Current

5.3Medium risk

Vulners AI Score5.3

EPSS0.0021