PT-2026-49545 · Canon · Eos Network Setting Tool For Windows+1

Ryan Hausknecht · Published 2026-06-15 · Updated 2026-06-16 · CVE-2026-9259

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2026-9259

Affected Products

Eos Network Setting Tool For Windows

Eos Network Setting Tool For Macos

References · 5

• https://canon.jp/support/support-info/260615vulnerability-response · Vendor Advisory
• https://canon-europe.com/support/product-security · Vendor Advisory
• https://psirt.canon/advisory-information/cp2026-005 · Vendor Advisory
• https://usa.canon.com/about-us/to-our-customers/cpa2026-005-vulnerability-remediation-for-eos-network-setting-tool · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-9259 · Security Note