CVE-2026-20766
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · low confidenceThis is an out-of-bounds memory access vulnerability affecting specific firmware versions of Milesight AIOT cameras. The flaw allows memory to be accessed outside allocated boundaries, potentially leading to information disclosure, denial of service, or code execution. With a CVSS score of 8.8 (HIGH), it is exploitable with low privileges and has significant confidentiality and integrity impacts.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Milesight AIOT camera modelLocate the camera physically or access the web interface/network scan to confirm the device is a Milesight AIOT camera. Note the exact model number from the device label or management interface.Affected if Device is not a Milesight AIOT camera, then this CVE does not apply
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Determine firmware versionAccess the camera web interface (typically via HTTP/HTTPS on the management IP), navigate to Settings or System information page, and record the firmware version string. Alternatively, check via ONVIF probe or SNMP if remote access is available.Affected if Unable to retrieve firmware version, version cannot be confirmed
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Compare firmware against affected versionsCompare your installed firmware version string to the affected version range once published by Milesight. Since specific versions are not yet defined in this CVE, treat any firmware version within the known product line as potentially affected until vendor advisory provides exact ranges.Affected if Firmware version falls within the affected range specified in the vendor advisory
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Verify network exposureCheck if the camera management interface (HTTP/HTTPS ports, ONVIF, RTSP, or proprietary management ports) is accessible from untrusted networks. Review firewall rules and network segmentation surrounding the camera.Affected if Camera management interface is exposed to untrusted networks without adequate access controls
A Milesight AIOT camera with a firmware version within the affected range, particularly if its management interface is network-accessible, is likely affected by this out-of-bounds memory access vulnerability.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate affected Milesight AIOT cameras to the latest firmware version once the vendor releases a patch. If no patch is available, restrict network access to camera management interfaces and monitor for indicators of compromise.
- Consultation6.0 h
- Implementation4.0 h
- Testing12.0 h
- Review / QA6.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-20766 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-20766 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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