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CVE-2026-54412

🗓️ 14 Jun 2026 17:26:36Reported by TuranSecType 
cve
 cve
🔗 web.nvd.nist.gov👁 7 Views

MQTT-C 1.1.6 has a heap read and integer underflow in mqtt_unpack_publish_response that lets a remote attacker crash a client with a crafted PUBLISH.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Cvelist
CVE-2026-54412
14 Jun 202617:26
cvelist
EUVD
EUVD-2026-36663
14 Jun 202618:32
euvd
NVD
CVE-2026-54412
14 Jun 202618:17
nvd
Positive Technologies
PT-2026-49135
14 Jun 202600:00
ptsecurity
[
  {
    "vendor": "LiamBindle",
    "product": "MQTT-C",
    "collectionURL": "https://github.com/LiamBindle/MQTT-C",
    "repo": "https://github.com/LiamBindle/MQTT-C",
    "programFiles": [
      "src/mqtt.c"
    ],
    "programRoutines": [
      {
        "name": "mqtt_unpack_publish_response"
      }
    ],
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThanOrEqual": "1.1.6",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unknown"
  }
]

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14 Jun 2026 18:17Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.18.2
CVSS 48.8
7