How severe is CVE-2026-40775?

CVE-2026-40775 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-40775 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-40775?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-40775 have an EU (EUVD) identifier?

Yes. CVE-2026-40775 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36984.

When was CVE-2026-40775 published?

CVE-2026-40775 was published on 2026-06-15 and last updated on 2026-06-17.

CVE-2026-40775

CVE-2026-40775 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. 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-862.

Key facts

Severity: High (CVSS 3.x base score 7.3)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36984
Weakness: CWE-862
Published: 2026-06-15
Last modified: 2026-06-17

Description

Unauthenticated Broken Access Control in Royal MCP <= 1.4.2 versions.

Frequently asked questions

What is CVE-2026-40775?: Unauthenticated Broken Access Control in Royal MCP <= 1.4.2 versions.
How severe is CVE-2026-40775?: CVE-2026-40775 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-40775 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-40775?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-40775 have an EU (EUVD) identifier?: Yes. CVE-2026-40775 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36984.
When was CVE-2026-40775 published?: CVE-2026-40775 was published on 2026-06-15 and last updated on 2026-06-17.

References

https://patchstack.com/database/wordpress/plugin/royal-mcp/vulnerability/wordpress-royal-mcp-plugin-1-4-2-broken-access-control-vulnerability?_s_id=cve

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