Which versions of Milesight AIOT cameras are affected by CVE-2026-20766?

Milesight AIOT camera firmware contains an out-of-bounds memory access vulnerability (CVE-2026-20766, CVSS 8.6) affecting confidentiality, integrity, and availability across industrial surveillance…

Milesight AIOT cameras CVE-2026-20766

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

CVE-2026-20766 has a CVSS 4.0 base score of 8.6 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

HIGH

Heap-based Buffer Overflow (CWE-122)

2026-04-28 ics-cert@hq.dhs.gov

Buffer Overflow Heap Overflow

8.6

CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Re-analysis Queued

Apr 28, 2026 - 20:23 vuln.today

cvss_changed

Analysis Generated

Apr 28, 2026 - 01:30 vuln.today

Analysis Generated

Apr 28, 2026 - 01:22 vuln.today

CVE Published

Apr 28, 2026 - 01:16 nvd

HIGH 8.6

DescriptionNVD

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

AnalysisAI

Out-of-bounds memory access in Milesight AIOT camera firmware enables remote attackers to achieve high-severity impacts on confidentiality, integrity, and availability when users interact with malicious content. CISA ICS-CERT has issued an advisory for this industrial IoT vulnerability. …

RemediationAI

Within 24 hours: Inventory all Milesight AIOT camera deployments and document current firmware versions; restrict user access to camera interfaces and disable remote management features where operationally feasible. Within 7 days: Implement network segmentation to isolate cameras on dedicated VLAN with strict ingress/egress controls; disable any unnecessary remote access protocols and user-facing features that could trigger the vulnerability. …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

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CVE-2026-20766 vulnerability details – vuln.today

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Milesight AIOT cameras CVE-2026-20766

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

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Milesight AIOT cameras CVE-2026-20766

CVSS VectorNVD

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External POC / Exploit Code