CVE-2026-8618— Pre-Authentication Stack-based Buffer Overflow Remote Code Execution in TDDPv2 Subtype 0x91 on Deco M9 Plus
一分钟漏洞结论
影响对象
TP-Link Systems Inc. Deco M9 Plus V2
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
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
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一、 漏洞 CVE-2026-8618 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
Pre-Authentication Stack-based Buffer Overflow Remote Code Execution in TDDPv2 Subtype 0x91 on Deco M9 Plus
来源: CVE Program / CVE List V5
Vulnerability Description
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.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
来源: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| TP-Link Systems Inc. | Deco M9 Plus V2 | 0 ~ 1.9.2 Build 20260818 | - |
|
二、漏洞 CVE-2026-8618 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-8618 其他参考 (3)
-
https://www.tp-link.com/us/support/faq/5322/ vendor-advisory
同批安全公告 · TP-Link Systems Inc. · 2026-10-01 · 共 6 条
| CVE-2026-102369 | 8.7 HIGH | Unauthenticated Remote Code Execution via MacTool Command Injection in TP-Link Tapo C120 & |
| CVE-2026-84682 | 7.7 HIGH | TDDPv2 setProductVer Command Injection in Archer AX90 |
| CVE-2026-9032 | 7.1 HIGH | Unauthenticated Onboarding Connect NULL Pointer Dereference Denial of Service Vulnerabilit |
| CVE-2026-78578 | 7.1 HIGH | Unauthenticated do Method Onboarding Connect Allows Wi‑Fi Reconfiguration Denial of Servic |
| CVE-2026-78577 | 5.3 MEDIUM | Unauthenticated Onboarding Scan Information Disclosure in TP-Link Tapo C120 & C200 |
IV. Related Vulnerabilities
Same vendor: TP-Link Systems Inc.
-
CVE-2026-84682
TDDPv2 setProductVer Command Injection in Archer AX90 -
CVE-2026-102369
Unauthenticated Remote Code Execution via MacTool Command In -
CVE-2026-78578
Unauthenticated do Method Onboarding Connect Allows Wi‑Fi Re -
CVE-2026-78577
Unauthenticated Onboarding Scan Information Disclosure in TP -
CVE-2026-9032
Unauthenticated Onboarding Connect NULL Pointer Dereference
V. Comments for CVE-2026-8618
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