Medium · 6.5 CVE-2026-9259 EUVD-2026-37019GHSA-v5vr-c46f-3vhm

Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier

Published Jun 15, 2026 · Updated Jun 16, 2026 · Assigned by Canon

Vendor: Canon Product: EOS Network Setting Tool for macOS Product: EOS Network Setting Tool for Windows Platform: macOS Platform: Windows

Description

Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier

Affected products

Vendor	Product	Affected	Fixed
Canon	EOS Network Setting Tool for Windows	1.5.0 or earlier	—
Canon	EOS Network Setting Tool for macOS	1.5.0 or earlier	—

References

https://psirt.canon/advisory-information/cp2026-005/ vendor-advisory
https://canon.jp/support/support-info/260615vulnerability-response vendor-advisory
https://www.usa.canon.com/about-us/to-our-customers/cpa2026-005-vulnerability-remediation-for-eos-network-setting-tool vendor-advisory
https://www.canon-europe.com/support/product-security/ vendor-advisory