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CVE-2026-12236 Infinite loop (DoS) in Bluetooth GATT client parsing of Read-By-Type responses with zero data length

🗓️ 13 Aug 2026 17:19:58Reported by zephyrType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

Bluetooth GATT client parse_read_std_char_desc() infinite loop on rsp->len=0 causing DoS.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-12236
13 Aug 202617:19
cve
euvd
EUVD
EUVD-2026-58131
13 Aug 202617:19
euvd
nvd
NVD
CVE-2026-12236
13 Aug 202618:17
nvd
[
  {
    "vendor": "zephyrproject",
    "product": "zephyr",
    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
    "packageName": "zephyr",
    "defaultStatus": "unaffected",
    "programFiles": [
      "subsys/bluetooth/host/gatt.c"
    ],
    "versions": [
      {
        "version": "2.6.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.4.2"
      }
    ]
  }
]

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13 Aug 2026 17:19Current
CVSS 3.16.5
9