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CVE-2026-19676 PECI transfer syscall verifier does not validate embedded user buffer pointers, allowing arbitrary kernel memory read/write from user mode

🗓️ 21 Oct 2026 18:19:27Reported by zephyrType 
cvelist
 cvelist
🔗 www.cve.org👁 2 Views

Local user-mode thread can perform arbitrary kernel memory read/write via PECI drivers.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-19676
21 Oct 202618:19
–cve
euvd
EUVD
EUVD-2026-107481
21 Oct 202618:19
–euvd
nvd
NVD
CVE-2026-19676
21 Oct 202619:17
–nvd
[
  {
    "vendor": "zephyrproject",
    "product": "zephyr",
    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
    "packageName": "zephyr",
    "defaultStatus": "unaffected",
    "programFiles": [
      "drivers/peci/peci_handlers.c"
    ],
    "programRoutines": [
      {
        "name": "z_vrfy_peci_transfer"
      }
    ],
    "versions": [
      {
        "version": "2.3.0",
        "status": "affected",
        "versionType": "semver",
        "lessThanOrEqual": "4.4.2"
      }
    ]
  }
]

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