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CVE-2026-5511— Information Disclosure via Diagnostic Interface Due to Improper Input Validation on TP-Link's Archer AX72

Quick assessment

Affected
TP-Link Systems Inc. Archer AX72 (SG) v1.0
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 Archer AX72是中国普联（TP-Link）公司的一款Wi-Fi 6无线路由器。 TP-Link Archer AX72 (SG) v1版本存在安全漏洞，该漏洞源于网络诊断功能对无效用户输入处理不当，可能导致诊断命令使用信息有限暴露。

AI Predicted 4.3 Difficulty: Trivial EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1592.001 · Hardware

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. Archer AX72 (SG) v1.0 < 1.4.6 Build 20260112 rel.66206 affected
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I. Basic Information for CVE-2026-5511

Vulnerability Information
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Vulnerability Title
Information Disclosure via Diagnostic Interface Due to Improper Input Validation on TP-Link's Archer AX72
Source: CVE Program / CVE List V5
Vulnerability Description
In the web management interface of Archer AX72 (SG) v1, the network diagnostic feature improperly handles invalid user input, resulting in limited exposure of diagnostic command usage information.  An authenticated attacker with administrative privileges could exploit this issue to confirm the presence of the diagnostic utility and view its valid command-line syntax and options.  The exposed information is limited in scope and does not include sensitive system data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过错误消息导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
TP-Link Archer AX72 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link Archer AX72是中国普联（TP-Link）公司的一款Wi-Fi 6无线路由器。 TP-Link Archer AX72 (SG) v1版本存在安全漏洞，该漏洞源于网络诊断功能对无效用户输入处理不当，可能导致诊断命令使用信息有限暴露。
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 AX72 (SG) v1.0 0 ~ 1.4.6 Build 20260112 rel.66206 -

II. Public POCs for CVE-2026-5511

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III. Intelligence Information for CVE-2026-5511

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Vendor Advisories for CVE-2026-5511 (1)

Vendor Pages for CVE-2026-5511 (1)

IV. Related Vulnerabilities

Same vendor: TP-Link Systems Inc.
Same weakness: CWE-209