TP-Link SG105PE vulnerable to authentication bypass


TP-Link SG105PE contains an authentication bypass vulnerability (CWE-287).

Baba Takao of BPS Co., Ltd reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.2 (Medium) [IPA Score]
  • Attack Vector: Adjacent Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
CVSS V2 Severity:
Base Metrics 4.3 (Medium) [IPA Score]
  • Access Vector: Adjacent Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: None
Affected Products

TP-LINK Technologies
  • SG105PE prior to "TL-SG105PE(UN) 1.0_1.0.0 Build 20221208"


Under certain conditions, an attacker may impersonate an administrator of the product. As a result, information may be obtained and the product's settings may be altered with the privilege of the administrator.

[Update the firmware]
Update the firmware to the latest version according to the information provided by the developer.
This vulnerability has been addressed in the firmware "TL-SG105PE(UN) 1.0_1.0.0 Build 20221208".
Vendor Information

TP-LINK Technologies
CWE (What is CWE?)

  1. Improper Authentication(CWE-287) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2023-22303

  1. JVN : JVN#78481846
Revision History

  • [2023/01/11]
      Web page was published