PT-2026-49544 · Canon · Eos Network Setting Tool For Windows+1

Ryan Hausknecht · Published 2026-06-15 · Updated 2026-06-16 · CVE-2026-9258

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Canon EOS Network Setting Tool versions prior to 1.5.1

Description Improper validation of SSH host keys occurs in the software, which may allow for security bypass or interception of communications.

Recommendations Update to a version later than 1.5.0.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2026-9258

Affected Products

Eos Network Setting Tool For Windows

Eos Network Setting Tool For Macos

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-9258 · Security Note
• 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://canon.jp/support/support-info/260615vulnerability-response · Vendor Advisory
• https://t.me/CVEtracker/56926 · Telegram Post