How severe is CVE-2026-20766?

CVE-2026-20766 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-20766 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-20766?

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-2026-20766 have an EU (EUVD) identifier?

Yes. CVE-2026-20766 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25956.

When was CVE-2026-20766 published?

CVE-2026-20766 was published on 2026-04-28 and last updated on 2026-06-17.

CVE-2026-20766

CVE-2026-20766 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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-122.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.6
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25956
Weakness: CWE-122
Published: 2026-04-28
Last modified: 2026-06-17

Description

An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.

Frequently asked questions

What is CVE-2026-20766?: An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
How severe is CVE-2026-20766?: CVE-2026-20766 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-20766 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-20766?: 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-2026-20766 have an EU (EUVD) identifier?: Yes. CVE-2026-20766 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25956.
When was CVE-2026-20766 published?: CVE-2026-20766 was published on 2026-04-28 and last updated on 2026-06-17.

References

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