CVE-2026-8618

A stack-based buffer overflow vulnerability exists in the TDDPv2 service (/usr/bin/tddp) on Deco M9 Plus due to insufficient validation of decrypted request data length before it is copied into a fixed-size stack buffer in the subtype 0x91 handler. Successful exploitation may allow an adjacent, unauthenticated attacker to cause a denial of service or achieve arbitrary code execution during the device setup phase through crafted TDDP packets.

CVSS

No CVSS.

References

Link	Resource
https://www.tp-link.com/en/support/download/deco-m9-plus/v2/#Firmware
https://www.tp-link.com/us/support/download/deco-m9-plus/v2/#Firmware
https://www.tp-link.com/us/support/faq/5322/

Configurations

No configuration.

History

01 Oct 2026, 19:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-01 19:17

Updated : 2026-10-01 20:36

NVD link : CVE-2026-8618

Mitre link : CVE-2026-8618

CVE.ORG link : CVE-2026-8618

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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