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Vulnerability1

CVE-2026-87121

CVSS 4.0
9.3 critical
EPSS
—
Published
·
Modified
Analyze CVE-2026-87121 with Vani AIImpact, affected versions, exploitation status, mitigations and detection

Description · NVD

lwIP TCP/IP Stack MQTT is vulnerable to an out-of-bounds write, which may allow an attacker to gain full code execution on the device.

Weakness
CWE-787
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD CVE.org GitHub PoCs EPSS (—)

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