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

No advisories yet.

Fixes

Solution

Milesight advises all users to update their device to the latest firmware versions of PE/PC/PA found at https://www.milesight.com/support/download/firmware.  https://www.milesight.com/support/download/firmware MS-Cxx63-PD: Update to 51.7.0.77-r13 MS-Cxx64-xPD: Update to 51.7.0.77-r13 MS-Cxx73-xPD: Update to 51.7.0.77-r13 MS-Cxx75-xxPD: Update to 51.7.0.77-r13 MS-Cxx83-xPD: Update to 51.7.0.77-r13 MS-Cxx74-PA: Update to 3x.8.0.3-r13 MS-C8477-HPG1: Update to 63.8.0.4-r4  MS-C8477-PC: Update to 48.8.0.4-r4 MS-C5321-FPE: Update to 62.8.0.4-r6 MS-Cxx72-xxxPE: Update to 61.8.0.5-r2 MS-Cxx62-xxxPE: Update to 61.8.0.5-r2 MS-Cxx52-xxxPE: Update to 61.8.0.5-r2 MS-Cxx66-xxxPE: Update to 61.8.0.5-r2 MS-Cxx66-xxxGPE: Update to 61.8.0.5-r2 MS-Cxx61-xxxPE: Update to 61.8.0.5-r2 MS-Cxx67-xxxPE: Update to 61.8.0.5-r2 MS-Cxx71-xxxPE: Update to 61.8.0.5-r2 MS-Cxx41-xxxPE: Update to 61.8.0.5-r2 MS-Cxx76-PE: Update to 61.8.0.5-r2 MS-Cxx65-PE: Update to 61.8.0.5-r2 MS-Cxx66-xxxG1: Update to 63.8.0.5-r4 MS-Cxx62-xxxG1: Update to 63.8.0.5-r4 MS-Cxx72-xxxG1: Update to 63.8.0.5-r4 MS-CQxx31-xxxG1: Update to CQ_63.8.0.5-r2  MS-CQxx68-xxxG1: Update to CQ_63.8.0.5-r2 MS-CQxx72-xxxG1: Update to CQ_63.8.0.5-r2 MS-Nxxxx-NxE: Update to 7x.9.0.19-r6 MS-Nxxxx-xxC: Update to 7x.9.0.19-r6 MS-Nxxxx-xxE: Update to 7x.9.0.19-r6 MS-Nxxxx-xxG: Update to 7x.9.0.19-r6 MS-Nxxxx-xxH: Update to 7x.9.0.19-r6 MS-Nxxxx-xxT: Update to 7x.9.0.19-r6 PMC8266-FPE: Update to PO_61.8.0.4-r1 PMC8266-FGPE: Update to PO_61.8.0.4-r1 PM3322-E: Update to PI_61.8.0.3-r5 TS4466-X4RIPG1: Update to T_63.8.0.4-r4  TS5366-X12RIPG1: Update to T_63.8.0.4-r4 TS8266-X4RIPG1: Update to T_63.8.0.4-r4 TS4466-X4RIVPG1: Update to T_63.8.0.4-r4 TS4466-RFIVPG1: Update to T_63.8.0.4-r4 TS8266-X4RIVPG1: Update to T_63.8.0.4-r4 TS8266-RFIVPG1: Update to T_63.8.0.4-r4 TS4466-X4RIWG1: Update to T_63.8.0.4-r4 TS8266-X4RIWG1: Update to T_63.8.0.4-r4 TS5510-GVH: Update to T_47.8.0.4-r8 TS5510-GH: Update to T_47.8.0.4-r8 TS5511-GVH: Update to T_47.8.0.4-r8 TS2966-X12TPE: Update to T_61.8.0.4-r4 TS4466-X4RPE: Update to T_61.8.0.4-r4 TS5366-X12PE: Update to T_61.8.0.4-r4 TS8266-X4PE: Update to T_61.8.0.4-r4 TS2966-X12TVPE: Update to T_61.8.0.4-r4 TS4466-X4RVPE: Update to T_61.8.0.4-r4 TS5366-X12VPE: Update to T_61.8.0.4-r4 TS8266-X4VPE: Update to T_61.8.0.4-r4 TS4441-X36RPE: Update to T_61.8.0.4-r4 TS4441-X36RE: Update to T_61.8.0.4-r4 TS4466-X4RWE: Update to T_61.8.0.4-r4 TS8266-X4WE: Update to T_61.8.0.4-r4 MS-C2964-RFLPC: Update to T_45.8.0.3-r10 MS-C2972-RFLPC: Update to T_45.8.0.3-r10 MS-C2966-RFLWPC: Update to T_45.8.0.3-r10 TS2866-X4TPC: Update to T_45.8.0.3-r10 TS2866-X4TVPC: Update to T_45.8.0.3-r10 TS2866-X4TGPC: Update to T_45.8.0.3-r10 TS2841-X36TPC: Update to T_45.8.0.3-r10 TS2841-X36TPC/W: Update to T_45.8.0.3-r10 TS2867-X5TPC: Update to T_45.8.0.3-r10 TS2961-X12TPC: Update to T_45.8.0.3-r10 TS8266-FPC/P: Update to T_45.8.0.3-r10 MS-C2966-X12RLPC: Update to T_45.8.0.3-r10 MS-C2966-X12RLVPC: Update to T_45.8.0.3-r10 MS-C5366-X12LPC: Update to T_45.8.0.3-r10 MS-C5366-X12LVPC: Update to T_45.8.0.3-r10 MS-C5361-X12LPC: Update to T_45.8.0.3-r10 MS-Cxx66-xxxxGOPC: Update to 45.8.0.2-AIoT-r5 SC211: Update to C_21.1.0.8-r5 SP111: Update to 52.8.0.4-r6 MS-Cxx66-RFIPKG1: Update to 63.8.0.5-r2-NX MS-Cxx72-RFIPKG1: Update to 63.8.0.5-r2-NX MS-Cxx66-FIPKG1: Update to 63.8.0.5-r2-NX MS-Cxx72-FIPKG1: Update to 63.8.0.5-r2-NX


Workaround

No workaround given by the vendor.

History

Tue, 28 Apr 2026 01:15:00 +0000

Type Values Removed Values Added
Description An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.
Title Milesight Cameras Heap-based Buffer Overflow
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.6, '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'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-04-27T23:45:52.896Z

Reserved: 2026-03-12T17:51:09.860Z

Link: CVE-2026-20766

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-28T01:16:00.233

Modified: 2026-04-28T01:16:00.233

Link: CVE-2026-20766

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses