CVE-2026-87121: CWE-787 in lwIP TCP/IP Stack MQTT
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.
CVE-2026-87121: CWE-787 in lwIP TCP/IP Stack MQTT
Description
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.
CVSS v3.1
Score 9.8critical
Affected software
lwIP
TCP/IP Stack MQTT
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- icscert
- Date Reserved
- 2026-09-09T21:28:27.099Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ab2df31f7a7c54106b20914
Added to database: 09/22/2026, 20:04:01 UTC
Last updated: 09/22/2026, 20:04:01 UTC
Views: 1
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