CVE-2026-20766
Milesight Cameras Heap-based Buffer Overflow
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Active
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Milesight Cameras Heap-based Buffer Overflow
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
- Record
CVE-2026-20766- CVSS 4.0
- 8.6 High
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 - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2026-25956
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
- Record
EUVD-2026-25956- CVSS 4.0
- 8.6 High
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7x7c-x6r8-32h9
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight...
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
- Record
GHSA-7x7c-x6r8-32h9- CVSS 4.0
- 8.6 High
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 - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
- Record
CVE-2026-20766- CVSS 4.0
- 8.6 High
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 - CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
Affected products
- milesight ms-c2964-rflpc
- milesight ms-c2966-rflwpc
- milesight ms-c2966-x12rlpc
- milesight ms-c2966-x12rlvpc
- milesight ms-c2972-rflpc
- milesight ms-c5321-fpe
- milesight ms-c5361-x12lpc
- milesight ms-c5366-x12lpc
- milesight ms-c5366-x12lvpc
- milesight ms-c8477-hpg1
- milesight ms-c8477-pc
- milesight ms-cqxx31-xxxg1
Show 70 moreShow less
- milesight ms-cqxx68-xxxg1
- milesight ms-cqxx72-xxxg1
- milesight ms-cxx41-xxxpe
- milesight ms-cxx52-xxxpe
- milesight ms-cxx61-xxxpe
- milesight ms-cxx62-xxxg1
- milesight ms-cxx62-xxxpe
- milesight ms-cxx63-pd
- milesight ms-cxx64-xpd
- milesight ms-cxx65-pe
- milesight ms-cxx66-fipkg1
- milesight ms-cxx66-rfipkg1
- milesight ms-cxx66-xxxg1
- milesight ms-cxx66-xxxgpe
- milesight ms-cxx66-xxxpe
- milesight ms-cxx66-xxxxgopc
- milesight ms-cxx67-xxxpe
- milesight ms-cxx71-xxxpe
- milesight ms-cxx72-fipkg1
- milesight ms-cxx72-rfipkg1
- milesight ms-cxx72-xxxg1
- milesight ms-cxx72-xxxpe
- milesight ms-cxx73-xpd
- milesight ms-cxx74-pa
- milesight ms-cxx75-xxpd
- milesight ms-cxx76-pe
- milesight ms-cxx83-xpd
- milesight ms-nxxxx-nxe
- milesight ms-nxxxx-xxc
- milesight ms-nxxxx-xxe
- milesight ms-nxxxx-xxg
- milesight ms-nxxxx-xxh
- milesight ms-nxxxx-xxt
- milesight pm3322-e
- milesight pmc8266-fgpe
- milesight pmc8266-fpe
- milesight sc211
- milesight sp111
- milesight ts2841-x36tpc
- milesight ts2841-x36tpc/w
- milesight ts2866-x4tgpc
- milesight ts2866-x4tpc
- milesight ts2866-x4tvpc
- milesight ts2867-x5tpc
- milesight ts2961-x12tpc
- milesight ts2966-x12tpe
- milesight ts2966-x12tvpe
- milesight ts4441-x36re
- milesight ts4441-x36rpe
- milesight ts4466-rfivpg1
- milesight ts4466-x4ripg1
- milesight ts4466-x4rivpg1
- milesight ts4466-x4riwg1
- milesight ts4466-x4rpe
- milesight ts4466-x4rvpe
- milesight ts4466-x4rwe
- milesight ts5366-x12pe
- milesight ts5366-x12ripg1
- milesight ts5366-x12vpe
- milesight ts5510-gh
- milesight ts5510-gvh
- milesight ts5511-gvh
- milesight ts8266-fpc/p
- milesight ts8266-rfivpg1
- milesight ts8266-x4pe
- milesight ts8266-x4ripg1
- milesight ts8266-x4rivpg1
- milesight ts8266-x4riwg1
- milesight ts8266-x4vpe
- milesight ts8266-x4we
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-20766 is a high vulnerability (CVSS 8.6) in Milesight Ms-c2964-rflpc, published April 27, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.29%, the 21st percentile. No source names a fixed version.