How severe is CVE-2026-52866?

CVE-2026-52866 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-52866 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-52866?

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

Does CVE-2026-52866 have an EU (EUVD) identifier?

Yes. CVE-2026-52866 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37970.

When was CVE-2026-52866 published?

CVE-2026-52866 was published on 2026-06-19 and last updated on 2026-06-22.

CVE-2026-52866

CVE-2026-52866 is a medium-severity vulnerability 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37970
Weakness: CWE-862
Published: 2026-06-19
Last modified: 2026-06-22

Description

An attacker within BLE communication range can monopolize the device's only available BLE connection slot, preventing legitimate users or applications from establishing a connection.

Frequently asked questions

What is CVE-2026-52866?: An attacker within BLE communication range can monopolize the device's only available BLE connection slot, preventing legitimate users or applications from establishing a connection.
How severe is CVE-2026-52866?: CVE-2026-52866 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-52866 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-52866?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-52866 have an EU (EUVD) identifier?: Yes. CVE-2026-52866 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37970.
When was CVE-2026-52866 published?: CVE-2026-52866 was published on 2026-06-19 and last updated on 2026-06-22.

References

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