CVE-2026-9031

MEDIUM CVSS 4.0: 6.8 EPSS 0.16%
Updated Aug 08, 2026
Tp-Link Systems Inc.
Parameter Value
CVSS 6.8 (MEDIUM)
Type CWE-20 (Improper Input Validation)
Vendor Tp-Link Systems Inc.
Public PoC No

An input validation vulnerability exists in the HTTP-WRITEOEM handler due to insufficient validation of user-supplied data before it is processed by internal flash-write handling logic. Successful exploitation may cause httpd process or device to crash, resulting in loss of access to the web interface and a denial-of-service condition.

Attack Parameters

Attack Vector
Adjacent
Requires local network access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products

tp-link systems inc.:archer a6 v4