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CVE-2026-19947

🗓️ 21 Oct 2026 18:19:35Reported by zephyrType 
cve
 cve
🔗 web.nvd.nist.gov👁 5 Views

Missing kernel object permission check in devmux syscalls allows unprivileged user threads to retarget a device multiplexer.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-19947
21 Oct 202620:05
–circl
cvelist
Cvelist
CVE-2026-19947 Missing kernel object permission check in devmux syscalls allows unprivileged user threads to retarget a device multiplexer
21 Oct 202618:19
–cvelist
euvd
EUVD
EUVD-2026-107488
21 Oct 202618:19
–euvd
nvd
NVD
CVE-2026-19947
21 Oct 202619:17
–nvd
Vulners
Node
[
  {
    "vendor": "zephyrproject",
    "product": "zephyr",
    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
    "packageName": "zephyr",
    "defaultStatus": "unaffected",
    "programFiles": [
      "drivers/misc/devmux/devmux.c",
      "include/zephyr/drivers/misc/devmux/devmux.h"
    ],
    "programRoutines": [
      {
        "name": "z_vrfy_devmux_select_get"
      },
      {
        "name": "z_vrfy_devmux_select_set"
      }
    ],
    "versions": [
      {
        "version": "3.6.0",
        "status": "affected",
        "lessThan": "4.5.0",
        "versionType": "semver"
      }
    ]
  }
]

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21 Oct 2026 19:17Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
5