CVE-2026-9259: High severity Canon EOS Network Setting Tool vulnerability
Published Jun 15, 2026
·Updated
Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier
Affected Software
4 affected components
Canon EOS Network Setting Tool<=1.5.0
All of the following
Canon EOS Network Setting Tool<1.5.1
Any of the following
Apple macOS
Microsoft Windows
Event History
Jun 15, 2026
CVE Published
via MITRE·11:36 PM
Data Sourced
via MITRE·11:36 PM
DescriptionSeverityWeakness
Jun 16, 2026
Data Sourced
via NVD·12:16 AM
DescriptionSeverityWeaknessAffected Software
Nov 5, 58514
Event
via FIRST·08:10 PM
Frequently Asked Questions
1
What is the severity of CVE-2026-9259?
The severity of CVE-2026-9259 is rated as medium with a score of 6.5.
2
What vulnerabilities does CVE-2026-9259 address?
CVE-2026-9259 addresses improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier.
3
How do I fix CVE-2026-9259?
To fix CVE-2026-9259, update the Canon EOS Network Setting Tool to the latest version that resolves the certificate validation issue.
4
Who is affected by CVE-2026-9259?
Users of Canon EOS Network Setting Tool Version 1.5.0 or earlier are affected by CVE-2026-9259.
5
What impacts does CVE-2026-9259 have on users?
CVE-2026-9259 may allow unauthorized interception of data due to improper validation of server certificates.