Panasonic KW Watcher vulnerable to memory buffer error


KW Watcher provided by Panasonic contains a vulnerability due to improper restriction of operations within the bounds of a memory buffer (CWE-119, CVE-2024-4162).

Michael Heinzl reported this vulnerability to Panasonic and coordinated.
After the coordination was completed, Panasonic reported the case to JPCERT/CC to notify users of the solutions through JVN.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.4 (Medium) [Other]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: None
  • Availability Impact: Low
Affected Products

Panasonic Corporation
  • KW Watcher from Ver.1.00 to Ver.2.83


If a user opens a specially crafted KWW file, information regarding a computer memory map may be guessed or KW Watcher may be terminated abnormally.

[Apply the workaround]
The developer recommends that users should apply following workarounds to mitigate the impacts of this vulnerability.

  • Do not open untrusted KWW files

  • Stop using a KWW file when leading conditions such as follows by opening it:

    • Display an error dialogue such as "File open error"

    • Abnormally terminate KW Watcher

Vendor Information

Panasonic Corporation
CWE (What is CWE?)

  1. Buffer Errors(CWE-119) [Other]
CVE (What is CVE?)

  1. CVE-2024-4162

  1. JVN : JVNVU#95120091
Revision History

  • [2024/05/17]
      Web page was published