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CVE-2026-11811 Socket file-descriptor leak in UpdateHub OTA client start_coap_client() leading to resource-exhaustion DoS

🗓️ 10 Aug 2026 22:55:17Reported by zephyrType 
cvelist
 cvelist
🔗 www.cve.org👁 14 Views

The UpdateHub over-the-air update client's start_coap_client() in subsys/mgmt/updatehub/updatehub.c leaks the CoAP/DTLS socket descriptor on its connection-setup failure paths. The shared error: cleanup gated socket closing on a ret > 0 flag, b...

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Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-11811
10 Aug 202622:55
attackerkb
cve
CVE
CVE-2026-11811
10 Aug 202622:55
cve
euvd
EUVD
EUVD-2026-55854
10 Aug 202622:55
euvd
nvd
NVD
CVE-2026-11811
10 Aug 202623:16
nvd
[
  {
    "vendor": "zephyrproject",
    "product": "zephyr",
    "collectionURL": "https://github.com/zephyrproject-rtos/zephyr",
    "packageName": "zephyr",
    "defaultStatus": "unaffected",
    "programFiles": [
      "subsys/mgmt/updatehub/updatehub.c"
    ],
    "versions": [
      {
        "version": "2.0.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "4.4.2"
      }
    ]
  }
]

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10 Aug 2026 22:55Current
CVSS 3.13.7
14