Denial of service via out-of-bounds heap access
Published Apr 27, 2026 · Updated Apr 28, 2026
Out-of-bounds memory access in Milesight AIOT camera firmware allows remote attackers to cause device denial of service. Milesight has not disclosed the affected routine, input field, or precise heap operation beyond an out-of-bounds access. Exploitation is network-reachable and unauthenticated but requires active user interaction; successful attacks interrupt camera or recorder service.
Summary
What happened
Out-of-bounds memory access in Milesight AIOT camera firmware allows remote attackers to cause device denial of service. Milesight has not disclosed the affected routine, input field, or precise heap operation beyond an out-of-bounds access. Exploitation is network-reachable and unauthenticated but requires active user interaction; successful attacks interrupt camera or recorder service.
The record
- CVE
- CVE-2026-20766
- Published
- Apr 27, 2026
- Updated
- Apr 28, 2026
- Vendor
- Milesight
- Product
- MS-Cxx61-xxxPE
- Classifications
- CWE-122, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 27, 2026CVE publishedPublication date reported by the CVE source.
- Apr 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=61.8.0.5-r2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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