EUVD-2026-30955
GHSA-wcm6-86h3-r2cq
Severity by source
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
1DescriptionCVE.org
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.
Articles & Coverage 1
AnalysisAI
Improper error handling in the TP-Link Archer AX72 (SG) v1.0 web management interface allows an authenticated administrative user to extract diagnostic command syntax by submitting invalid input to the network diagnostic feature. The disclosure is narrow - limited to command-line usage information for the underlying diagnostic utility - and does not expose credentials, configuration data, or sensitive system state. A vendor-released patch is available, no public exploit code has been identified, and the vulnerability carries no CISA KEV designation.
Technical ContextAI
CWE-209 (Generation of Error Message Containing Sensitive Information) describes the root cause: the application returns overly verbose error output that reveals internal implementation details rather than a sanitized user-facing message. The affected component is the network diagnostic feature within the web management interface of the Archer AX72 (SG) v1.0 router, identified by CPE cpe:2.3:a:tp-link_systems_inc.:archer_ax72_(sg)_v1.0. This is a common pattern in consumer and SOHO embedded networking firmware, where diagnostic utilities such as ping or traceroute are invoked by web interface wrappers that fail to suppress or sanitize error output from the underlying OS-level command when invalid arguments are supplied. The result is leakage of command-line syntax and option flags that confirm which utility is in use and how it is called.
RemediationAI
The primary fix is upgrading to firmware version 1.4.6 Build 20260112 rel.66206 or later, available from TP-Link's Singapore support page at https://www.tp-link.com/sg/support/download/archer-ax72/#Firmware, with the accompanying advisory at https://www.tp-link.com/us/support/faq/5096/. Because exploitation requires administrative credentials, organizations that cannot immediately apply the firmware update should enforce strict administrative account controls: limit the number of users holding admin access to the management interface, rotate admin passwords, and ensure the web management interface is not exposed beyond trusted LAN segments. Restricting management UI access by IP or VLAN further reduces the already-narrow attacker population. These compensating controls do not eliminate the vulnerability but meaningfully reduce the realistic threat window while a scheduled firmware update is arranged.
Same weakness CWE-209 – Error Message Information Leak
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today