CVE-2026-20766

HIGHNVD 8.88.8—

8.8

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

CVSS v3: 8.8
EG Score: 8.8(high)
EPSS: 13.8%
KEV: Not listed

Published

April 28, 2026

Last Modified

April 28, 2026

Advisory Details (3)

Auto-updated May 2, 2026

Patch available. Sources: cisa.

generic

Milesight | 5G, AI, IoT and LoRaWAN®

https://www.milesight.com/support/download/firmware

cisa Patch Available

Milesight Cameras | CISA

https://www.cisa.gov/news-events/ics-advisories/icsa-26-113-03

generic

CSAF/csaf_files/OT/white/2026/icsa-26-113-03.json at develop · cisagov/CSAF · GitHub

https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-113-03.json

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-122Heap-based Buffer Overflow

Data Freshness Timeline

(refreshed 18× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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2026-05-31 00:16 UTCepss_batch
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2026-05-29 13:44 UTCepss_batch
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2026-05-28 13:44 UTCepss_batch
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2026-05-27 13:40 UTCepss_batch
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2026-05-26 13:44 UTCepss_batch
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2026-05-26 07:18 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
2026-05-21 22:43 UTCepss_batch

Frequently asked(5)

What is CVE-2026-20766?

CVE-2026-20766 is a high vulnerability published on April 28, 2026. An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.

When was CVE-2026-20766 disclosed?

CVE-2026-20766 was first published in the National Vulnerability Database on April 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-20766 actively exploited?

CVE-2026-20766 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-20766?

CVE-2026-20766 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2026-20766?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-20766, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2026-20766

📅 Published

🔄 Last Modified

📋 Advisory Details (3)