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CVE-2026-63821

🗓️ 19 Jul 2026 12:02:18Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 18 Views

Fix memory leaks in linux wifi rtw88 usb by checking rtw_usb_write_port and freeing skb and txcb on write failures.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-63821
19 Jul 202612:02
attackerkb
circl
Circl
CVE-2026-63821
19 Jul 202616:15
circl
cvelist
Cvelist
CVE-2026-63821 wifi: rtw88: usb: fix memory leaks on USB write failures
19 Jul 202612:02
cvelist
debiancve
Debian CVE
CVE-2026-63821
19 Jul 202612:02
debiancve
euvd
EUVD
EUVD-2026-45487
19 Jul 202612:02
euvd
f5
F5 Networks
K000162739: Linux kernel vulnerability CVE-2026-63821
3 Aug 202618:44
f5
mageia
Mageia
Updated kernel, kmod, bluez, firmware, wireless-regdb and drakx-installer-images packages fix security vulnerabilities
1 Aug 202615:58
mageia
nvd
NVD
CVE-2026-63821
19 Jul 202612:16
nvd
opensuse
OPENSUSE Linux
kernel-devel-7.1.4-1.1 on GA media (moderate)
24 Jul 202600:00
opensuse
osv
OSV
BELL-CVE-2026-63821
22 Jul 202606:05
osv
Rows per page
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.26.6.144
linuxlinux_kernelRange6.7.06.12.95
linuxlinux_kernelRange6.13.06.18.38
linuxlinux_kernelRange6.19.07.1.3
linuxlinux_kernelRange7.2.07.2-rc1
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/realtek/rtw88/usb.c"
    ],
    "versions": [
      {
        "version": "a82dfd33d1237f6c0fb8a7077022189d1fc7ec98",
        "lessThan": "2b2060c2075a72bc2de43ce5e1b9347d6c5e27bb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a82dfd33d1237f6c0fb8a7077022189d1fc7ec98",
        "lessThan": "53fed4061a09755de99c89fdc7fae5b794da455f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a82dfd33d1237f6c0fb8a7077022189d1fc7ec98",
        "lessThan": "200d58c851b8f63f77a05570072dd20f79bc3681",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a82dfd33d1237f6c0fb8a7077022189d1fc7ec98",
        "lessThan": "8206d173d18ef5a077423119f4e9a93cb3a6f4eb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a82dfd33d1237f6c0fb8a7077022189d1fc7ec98",
        "lessThan": "6b964941bbfe6e0f18b1a5e008486dbb62df440a",
        "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/net/wireless/realtek/rtw88/usb.c"
    ],
    "versions": [
      {
        "version": "6.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.144",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.95",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.38",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.3",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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27 Jul 2026 17:44Current
5.3Medium risk
Vulners AI Score5.3
EPSS0.00157
18