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CVE-2026-102815— Command Injection in tmpServer Allows Local Privilege Escalation in TP-Link RE305

Quick assessment

Affected
TP-Link Systems Inc. RE305 v3
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 RE305 V3 的 tmpServer 服务中存在操作系统命令注入漏洞。该服务以 root 权限运行，并监听本地回环接口。若攻击者已在设备上拥有低权限进程的访问权，则可通过向 TDDPv1 服务提交特制请求，以 root 权限执行操作系统命令。 成功利用该漏洞后，本地低权限攻击者可在受影响设备上获取 root 权限并执行任意操作系统命令。

CVSS 6.9 · Medium

Possible ATT&CK Techniques 2 AI

T1055 · Process Injection T1068.004

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. RE305 v3 < 1.1.8 Build 20260921 Rel. 42853 affected
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I. Basic Information for CVE-2026-102815

Vulnerability Information
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Vulnerability Title
Command Injection in tmpServer Allows Local Privilege Escalation in TP-Link RE305
Source: CVE Program / CVE List V5
Vulnerability Description
An operating-system command injection vulnerability exists in the tmpServer service of TP-Link RE305 V3. The service runs with root privileges and listens on the local loopback interface. A local attacker with access to a low-privileged process on the device may submit a crafted request to the TDDPv1 service and execute operating-system commands with root privileges. Successful exploitation may allow a local attacker with low privileges to obtain root privileges and execute arbitrary operating-system commands on the affected device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
TP-Link Systems Inc. RE305 v3 0 ~ 1.1.8 Build 20260921 Rel. 42853 -

II. Public POCs for CVE-2026-102815

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III. Intelligence Information for CVE-2026-102815

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Other References for CVE-2026-102815 (3)

Same Patch Batch · TP-Link Systems Inc. · 2026-10-27 · 5 CVEs total

CVE-2026-102814 8.7 HIGH Improper Authentication in TP-Link TDDP v2 Allows Root Command Execution in TP-Link RE305
CVE-2026-102812 6.9 MEDIUM Hardcoded AES-128 Key and Fixed IV in Configuration Backup Encryption in TP-Link RE305 and
CVE-2026-102813 6.1 MEDIUM Administrator Password Reset Through the Verification-Code Interface in TP-Link RE305
CVE-2026-102816 5.3 MEDIUM Unauthenticated Wireless Regulatory Region Configuration in TP-Link RE305

IV. Related Vulnerabilities

Same product: RE305 v3
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-78