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CVE-2026-15429— Privilege Escalation via Improper Input Sanitization in TP-Link Archer VX1800v

Quick assessment

Affected
TP-Link Systems Inc. Archer VX1800v v1
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 Systems Inc Archer VX1800v v1是TP-Link Systems Inc公司的一款双频千兆无线路由器。 TP-Link Systems Inc Archer VX1800v v1存在输入验证错误漏洞，该漏洞源于HTTP认证组件中对用户控制输入处理不当，可能允许换行符注入内部构建的配置数据，经身份验证且具有足够权限的用户可能修改账户设置并提升管理权限。

AI Predicted 8.1 Difficulty: Easy EPSS 1.39% · P71

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. Archer VX1800v v1 < 0.16.0 2.0.0 v6092.0 Build 260521 RC.7927n affected
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I. Basic Information for CVE-2026-15429

Vulnerability Information
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Vulnerability Title
Privilege Escalation via Improper Input Sanitization in TP-Link Archer VX1800v
Source: CVE Program / CVE List V5
Vulnerability Description
A privilege escalation vulnerability exists in the HTTP authentication component in Archer VX1800v v1. Improper handling of user-controlled input may allow newline characters to be injected into internally constructed configuration data.  An authenticated user with sufficient privileges may be able to modify account settings and gain elevated administrative privileges.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
对CRLF序列的转义处理不恰当(CRLF注入)
Source: CVE Program / CVE List V5
Vulnerability Title
TP-Link Systems Inc Archer VX1800v v1 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link Systems Inc Archer VX1800v v1是TP-Link Systems Inc公司的一款双频千兆无线路由器。 TP-Link Systems Inc Archer VX1800v v1存在输入验证错误漏洞，该漏洞源于HTTP认证组件中对用户控制输入处理不当，可能允许换行符注入内部构建的配置数据，经身份验证且具有足够权限的用户可能修改账户设置并提升管理权限。
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. Archer VX1800v v1 0 ~ 0.16.0 2.0.0 v6092.0 Build 260521 RC.7927n -

II. Public POCs for CVE-2026-15429

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III. Intelligence Information for CVE-2026-15429

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Vendor Advisories for CVE-2026-15429 (1)

Vendor Pages for CVE-2026-15429 (1)

Same Patch Batch · TP-Link Systems Inc. · 2026-07-14 · 4 CVEs total

CVE-2026-15428 OS Command Injection in TR-069 (CWMP) Management Interface in TP-Link Archer VX1800v
CVE-2026-15427 OS Command Injection in TR-069 (CWMP) Management Interface in TP-Link Archer VX1800v
CVE-2026-5040 Weak Password Hashing Mechanism in TP-Link Deco M5

IV. Related Vulnerabilities

Same product: Archer VX1800v v1
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-93

V. Comments for CVE-2026-15429

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