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CVE-2026-105810— Authenticated Local Stack Overflow in TP-Link Tapo C320WS

Quick assessment

Affected
TP-Link Systems Inc. Tapo C320WS v2
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tapo C320WS V2.0 版本在本地配网 Wi-Fi 配置路径中存在一个经过身份验证的栈缓冲区溢出漏洞。同一网络中的已认证攻击者可提交包含超大加密密码字段的恶意请求，从而覆盖栈状态，并以 root 权限执行任意命令。 成功利用该漏洞后，同一网络中的已认证攻击者可能完全控制受影响的摄像头，修改其行为，访问敏感的本地配置信息，并破坏设备的可用性。

CVSS 8.5 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. Tapo C320WS v2 < 1.6.6 Build 260917 Rel.81089n affected
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I. Basic Information for CVE-2026-105810

Vulnerability Information
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Vulnerability Title
Authenticated Local Stack Overflow in TP-Link Tapo C320WS
Source: CVE Program / CVE List V5
Vulnerability Description
Tapo C320WS V2.0 contains an authenticated stack-based buffer overflow in the local onboarding Wi-Fi configuration path. An authenticated attacker on the adjacent network can submit a crafted request containing an oversized encrypted password field, overwrite stack state, and execute commands with root privileges. Successful exploitation may allow an authenticated adjacent-network attacker to take control of the affected camera, modify camera behavior, access sensitive local configuration, and disrupt device availability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TP-Link Systems Inc. Tapo C320WS v2 0 ~ 1.6.6 Build 260917 Rel.81089n -

II. Public POCs for CVE-2026-105810

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III. Intelligence Information for CVE-2026-105810

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Vendor Pages for CVE-2026-105810 (2)

Same Patch Batch · TP-Link Systems Inc. · 2026-10-19 · 3 CVEs total

CVE-2026-105815 7.1 HIGH Credential Material Exposure Leading to Unauthorized Streamed Media-Session Access in TP-L
CVE-2026-105814 5.3 MEDIUM Order-Dependent Authentication Bypass in the DS JSON API in TP-Link Tapo C210

IV. Related Vulnerabilities

Same vendor: TP-Link Systems Inc.
Same weakness: CWE-121

V. Comments for CVE-2026-105810

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