CVE-2026-9258
Received Received - Intake
BaseFortify

Publication date: 2026-06-16

Last updated on: 2026-06-16

Assigner: Canon Inc.

Description
Improper validation of SSH host keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier
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Meta Information
Published
2026-06-16
Last Modified
2026-06-16
Generated
2026-06-16
AI Q&A
2026-06-16
EPSS Evaluated
N/A
NVD
CVE-2026-9258
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
canon eos_network_setting_tool to 1.5.0 (exc)
canon eos_utility From 3.12.0 (inc) to 3.20.20 (inc)
canon eos_utility From 3.20.21 (inc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-295 The product does not validate, or incorrectly validates, a certificate.
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Executive Summary

CVE-2026-9258 is a vulnerability in Canon's EOS Network Setting Tool, specifically versions 1.5.0 and earlier. The issue involves improper validation of SSH host keys, which are used to establish secure connections. This flaw could allow an attacker to obtain authentication credentials used in FTP, FTPS, and SFTP communication test functions.

Impact Analysis

If exploited, this vulnerability could allow an attacker to steal authentication credentials for FTP, FTPS, and SFTP communications. This could lead to unauthorized access to sensitive data or systems that rely on these credentials for secure file transfers.

Mitigation Strategies

To mitigate the vulnerability CVE-2026-9258, users should update the EOS Utility software to the latest version.

  • Update EOS Utility to version 3.20.21 or later.
  • Ensure that the EOS Network Setting Tool version is later than 1.5.0, as versions 1.5.0 and earlier are vulnerable.
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