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EUVD-2026-63076

🗓️ 19 Aug 2026 20:37:36Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 5 Views

Zephyr RTOS NVS backend writes NUL past 74-byte stack buffer causing crash or DoS via crafted flash entries.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-12634
19 Aug 202620:37
cve
cvelist
Cvelist
CVE-2026-12634 Out-of-bounds stack write in the settings NVS backend from over-reported nvs_read length
19 Aug 202620:37
cvelist
nvd
NVD
CVE-2026-12634
19 Aug 202621:16
nvd
ptsecurity
Positive Technologies
PT-2026-78686
19 Aug 202600:00
ptsecurity
[
  {
    "enisaIdVendor": [
      {
        "id": "b5a9f26f-d8dd-387b-accf-07e16ba1cf16",
        "vendor": {
          "name": "zephyrproject"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "c3ca38d9-f86c-34e7-a92a-bc27ebc923a3",
        "product": {
          "name": "Zephyr",
          "vendor": {
            "name": "zephyrproject-rtos"
          }
        },
        "product_version": "2.0.0 <4.5.0"
      }
    ]
  }
]

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19 Aug 2026 20:37Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.3
5