How severe is CVE-2026-9258?

CVE-2026-9258 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-9258 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-9258?

CVE-2026-9258 affects Canon Eos Network Setting Tool. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-9258?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-9258 have an EU (EUVD) identifier?

Yes. CVE-2026-9258 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37018.

When was CVE-2026-9258 published?

CVE-2026-9258 was published on 2026-06-16 and last updated on 2026-06-18.

CVE-2026-9258

CVE-2026-9258 is a medium-severity vulnerability in Canon Eos Network Setting Tool with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-295.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37018
Weakness: CWE-295
Affected product: Canon Eos Network Setting Tool
Published: 2026-06-16
Last modified: 2026-06-18

Description

Improper validation of SSH host keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier

Frequently asked questions

What is CVE-2026-9258?: Improper validation of SSH host keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier
How severe is CVE-2026-9258?: CVE-2026-9258 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-9258 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-9258?: CVE-2026-9258 affects Canon Eos Network Setting Tool. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-9258?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-9258 have an EU (EUVD) identifier?: Yes. CVE-2026-9258 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37018.
When was CVE-2026-9258 published?: CVE-2026-9258 was published on 2026-06-16 and last updated on 2026-06-18.

References

Affected products (1)

cpe:2.3:a:canon:eos_network_setting_tool:*:*:*:*:*:*:*:*

More vulnerabilities in Canon Eos Network Setting Tool

CVE-2026-9261 — Medium (CVSS 6.8): Use of weak SSH cryptographic algorithms in Canon EOS Network Setting Tool Version 1.5.0 or earlier
CVE-2026-9262 — Medium (CVSS 6.5): Use of a non-secure protocol as the default FTP configuration in Canon EOS Network Setting Tool Version 1.5.0 or earlier
CVE-2026-9259 — Medium (CVSS 6.5): Improper validation of server certificates in Canon EOS Network Setting Tool Version 1.5.0 or earlier
CVE-2026-9260 — Medium (CVSS 6.2): Use of hard-coded cryptographic keys in Canon EOS Network Setting Tool Version 1.5.0 or earlier

All CVEs affecting Canon Eos Network Setting Tool →

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