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CVE-2026-15315— Unauthenticated Administrative Authentication Bypass via device_confirm Replay in TP-Link Tapo C200

Quick assessment

Affected
TP-Link Systems Inc. Tapo C200 v5
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.

TP-Link Tapo C200是中国TP-Link公司的一款智能摄像头。 TP-Link Tapo C200 v5 V5_1.4.6 Build 260709 Rel.27675n之前版本存在授权问题漏洞，该漏洞源于登录认证验证模块存在不当认证漏洞，攻击者可利用challenge参数验证弱点绕过正常认证控制并获取管理员会话令牌，可能导致执行特权管理操作、未授权管理员访问及临时中断设备服务，造成拒绝服务。

CVSS 8.7 · High EPSS 0.24% · P16

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. Tapo C200 v5 < V5_1.4.6 Build 260709 Rel.27675n affected
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I. Basic Information for CVE-2026-15315

Vulnerability Information
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Vulnerability Title
Unauthenticated Administrative Authentication Bypass via device_confirm Replay in TP-Link Tapo C200
Source: CVE Program / CVE List V5
Vulnerability Description
Tapo C200 v5 contains an improper authentication vulnerability within the login authentication verification module. An attacker on the local network can exploit weaknesses in challenge parameter validation to bypass normal authentication controls and obtain administrative session tokens. Successful exploitation may allow an attacker to subsequently execute privileged management actions, enable unauthorized administrative access and temporary disruption of device services, resulting in a denial-of-service (DoS) condition.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
TP-Link Tapo C200 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link Tapo C200是中国TP-Link公司的一款智能摄像头。 TP-Link Tapo C200 v5 V5_1.4.6 Build 260709 Rel.27675n之前版本存在授权问题漏洞，该漏洞源于登录认证验证模块存在不当认证漏洞，攻击者可利用challenge参数验证弱点绕过正常认证控制并获取管理员会话令牌，可能导致执行特权管理操作、未授权管理员访问及临时中断设备服务，造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TP-Link Systems Inc. Tapo C200 v5 0 ~ V5_1.4.6 Build 260709 Rel.27675n -

II. Public POCs for CVE-2026-15315

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III. Intelligence Information for CVE-2026-15315

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Vendor Advisories for CVE-2026-15315 (1)

Vendor Pages for CVE-2026-15315 (2)

IV. Related Vulnerabilities

Same product: Tapo C200 v5
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-287

V. Comments for CVE-2026-15315

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