CVE-2026-20766
HIGHCVSS 8.8/10EPSS 0.29%
Last modified
CVE-2026-20766 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Milesight | MS-Cxx63-PD | <= 51.7.0.77-r12 |
| Milesight | MS-Cxx64-xPD | <= 51.7.0.77-r12 |
| Milesight | MS-Cxx73-xPD | <= 51.7.0.77-r12 |
| Milesight | MS-Cxx75-xxPD | <= 51.7.0.77-r12 |
| Milesight | MS-Cxx83-xPD | <= 51.7.0.77-r12 |
| Milesight | MS-Cxx74-PA | <= 3x.8.0.3-r11 |
| Milesight | MS-C8477-HPG1 | <= 63.8.0.4-r3 |
| Milesight | MS-C8477-PC | <= 48.8.0.4-r3 |
| Milesight | MS-C5321-FPE | <= 62.8.0.4-r5 |
| Milesight | MS-Cxx72-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx62-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx52-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx66-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx66-xxxGPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx61-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx67-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx71-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx41-xxxPE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx76-PE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx65-PE | <= 61.8.0.5-r2 |
| Milesight | MS-Cxx66-xxxG1 | <= 63.8.0.5-r3 |
| Milesight | MS-Cxx62-xxxG1 | <= 63.8.0.5-r3 |
| Milesight | MS-Cxx72-xxxG1 | <= 63.8.0.5-r3 |
| Milesight | MS-CQxx31-xxxG1 | <= CQ_63.8.0.5-r1 |
| Milesight | MS-CQxx68-xxxG1 | <= CQ_63.8.0.5-r1 |
| Milesight | MS-CQxx72-xxxG1 | <= CQ_63.8.0.5-r1 |
| Milesight | MS-Nxxxx-NxE | <= 7x.9.0.19-r5 |
| Milesight | MS-Nxxxx-xxC | <= 7x.9.0.19-r5 |
| Milesight | MS-Nxxxx-xxE | <= 7x.9.0.19-r5 |
| Milesight | MS-Nxxxx-xxG | <= 7x.9.0.19-r5 |
| Milesight | MS-Nxxxx-xxH | <= 7x.9.0.19-r5 |
| Milesight | MS-Nxxxx-xxT | <= 7x.9.0.19-r5 |
| Milesight | PMC8266-FPE | <= PO_61.8.0.4_LPR |
| Milesight | PMC8266-FGPE | <= PO_61.8.0.4_LPR |
| Milesight | PM3322-E | <= PI_61.8.0.3_LPR-r3 |
| Milesight | TS4466-X4RIPG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS5366-X12RIPG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS8266-X4RIPG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS4466-X4RIVPG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS4466-RFIVPG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS8266-X4RIVPG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS8266-RFIVPG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS4466-X4RIWG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS8266-X4RIWG1 | <= T_63.8.0.4_LPR-r3 |
| Milesight | TS5510-GVH | <= T_47.8.0.4_LPR-r7 |
| Milesight | TS5510-GH | <= T_47.8.0.4_LPR-r6 |
| Milesight | TS5511-GVH | <= T_47.8.0.4_LPR-r6 |
| Milesight | TS2966-X12TPE | <= T_61.8.0.4_LPR-r3 |
| Milesight | TS4466-X4RPE | <= T_61.8.0.4_LPR-r3 |
| Milesight | TS5366-X12PE | <= T_61.8.0.4_LPR-r3 |
Showing 50 of 82 affected configurations. See the CNA advisory for the full list.
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-20766?
An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
How severe is CVE-2026-20766?
CVE-2026-20766 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.29% probability of exploitation in the next 30 days.
How do I fix CVE-2026-20766?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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