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CVE-2026-87121 Out-of-bounds write in lwIP TCP/IP Stack MQTT Client Application

🗓️ 22 Sep 2026 19:48:25Reported by icscertType 
cvelist
 cvelist
🔗 www.cve.org👁 17 Views

Out-of-bounds write in lwIP TCP/IP Stack MQTT Client Application enables code execution.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-87121
22 Sep 202616:15
circl
cve
CVE
CVE-2026-87121
22 Sep 202619:48
cve
debiancve
Debian CVE
CVE-2026-87121
22 Sep 202619:48
debiancve
euvd
EUVD
EUVD-2026-84816
22 Sep 202619:48
euvd
nvd
NVD
CVE-2026-87121
22 Sep 202620:17
nvd
vulnrichment
Vulnrichment
CVE-2026-87121 Out-of-bounds write in lwIP TCP/IP Stack MQTT Client Application
22 Sep 202619:48
vulnrichment
[
  {
    "vendor": "lwIP",
    "product": "TCP/IP Stack MQTT",
    "versions": [
      {
        "status": "affected",
        "version": "2.0.1",
        "lessThanOrEqual": "2.2.1",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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22 Sep 2026 19:51Current
CVSS 49.3
CVSS 3.19.8
EPSS0.00775
SSVC
17