HIGH 7.7 NVD
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 dat
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.
References
- 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/
This high severity vulnerability with a CVSS score of 7.7 was published on 2026-10-01 via NVD.
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