Milesight Cameras Heap-based Buffer Overflow_CVE-2026-20766

8.6 / 10

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

Description

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

AI Analysis

AI processing failed - no valid JSON found

Basic Information

ID CVE-2026-20766

Source icscert

Published Apr 27, 2026 at 23:45

Affected Product

Vendor Milesight

Product MS-Cxx63-PD

Affected Versions Milesight MS-Cxx63-PD 0
Milesight MS-Cxx64-xPD 0
Milesight MS-Cxx73-xPD 0
Milesight MS-Cxx75-xxPD 0
Milesight MS-Cxx83-xPD 0
Milesight MS-Cxx74-PA 0
Milesight MS-C8477-HPG1 0
Milesight MS-C8477-PC 0
Milesight MS-C5321-FPE 0
Milesight MS-Cxx72-xxxPE 0
Milesight MS-Cxx62-xxxPE 0
Milesight MS-Cxx52-xxxPE 0
Milesight MS-Cxx66-xxxPE 0
Milesight MS-Cxx66-xxxGPE 0
Milesight MS-Cxx61-xxxPE 0
Milesight MS-Cxx67-xxxPE 0
Milesight MS-Cxx71-xxxPE 0
Milesight MS-Cxx41-xxxPE 0
Milesight MS-Cxx76-PE 0
Milesight MS-Cxx65-PE 0
Milesight MS-Cxx66-xxxG1 0
Milesight MS-Cxx62-xxxG1 0
Milesight MS-Cxx72-xxxG1 0
Milesight MS-CQxx31-xxxG1 0
Milesight MS-CQxx68-xxxG1 0
Milesight MS-CQxx72-xxxG1 0
Milesight MS-Nxxxx-NxE 0
Milesight MS-Nxxxx-xxC 0
Milesight MS-Nxxxx-xxE 0
Milesight MS-Nxxxx-xxG 0
Milesight MS-Nxxxx-xxH 0
Milesight MS-Nxxxx-xxT 0
Milesight PMC8266-FPE 0
Milesight PMC8266-FGPE 0
Milesight PM3322-E 0
Milesight TS4466-X4RIPG1 0
Milesight TS5366-X12RIPG1 0
Milesight TS8266-X4RIPG1 0
Milesight TS4466-X4RIVPG1 0
Milesight TS4466-RFIVPG1 0
Milesight TS8266-X4RIVPG1 0
Milesight TS8266-RFIVPG1 0
Milesight TS4466-X4RIWG1 0
Milesight TS8266-X4RIWG1 0
Milesight TS5510-GVH 0
Milesight TS5510-GH 0
Milesight TS5511-GVH 0
Milesight TS2966-X12TPE 0
Milesight TS4466-X4RPE 0
Milesight TS5366-X12PE 0
Milesight TS8266-X4PE 0
Milesight TS2966-X12TVPE 0
Milesight TS4466-X4RVPE 0
Milesight TS5366-X12VPE 0
Milesight TS8266-X4VPE 0
Milesight TS4441-X36RPE 0
Milesight TS4441-X36RE 0
Milesight TS4466-X4RWE 0
Milesight TS8266-X4WE 0
Milesight MS-C2964-RFLPC 0
Milesight MS-C2972-RFLPC 0
Milesight MS-C2966-RFLWPC 0
Milesight TS2866-X4TPC 0
Milesight TS2866-X4TVPC 0
Milesight TS2866-X4TGPC 0
Milesight TS2841-X36TPC 0
Milesight TS2841-X36TPC/W 0
Milesight TS2867-X5TPC 0
Milesight TS2961-X12TPC 0
Milesight TS8266-FPC/P 0
Milesight MS-C2966-X12RLPC 0
Milesight MS-C2966-X12RLVPC 0
Milesight MS-C5366-X12LPC 0
Milesight MS-C5366-X12LVPC 0
Milesight MS-C5361-X12LPC 0
Milesight MS-Cxx66-xxxxGOPC 0
Milesight SC211 0
Milesight SP111 0
Milesight MS-Cxx66-RFIPKG1 0
Milesight MS-Cxx72-RFIPKG1 0
Milesight MS-Cxx66-FIPKG1 0
Milesight MS-Cxx72-FIPKG1 0

CWE Classification

CWE-122

References

{
    "lastseen": "",
    "description": "An out-of-bounds memory access vulnerability exists in specific firmware versions of Milesight AIOT cameras.",
    "published": "2026-04-27T23:45:52.896Z",
    "modified": "2026-04-27T23:45:52.896Z",
    "type": "cve",
    "title": "Milesight Cameras Heap-based Buffer Overflow",
    "source": "icscert",
    "references": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-113-03\nhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-113-03.json\nhttps://www.milesight.com/support/download/firmware",
    "id": "CVE-2026-20766",
    "bulletinFamily": "",
    "cwe": [
        "CWE-122"
    ],
    "cvelist": null,
    "sourceData": "Milesight MS-Cxx63-PD 0\nMilesight MS-Cxx64-xPD 0\nMilesight MS-Cxx73-xPD 0\nMilesight MS-Cxx75-xxPD 0\nMilesight MS-Cxx83-xPD 0\nMilesight MS-Cxx74-PA 0\nMilesight MS-C8477-HPG1 0\nMilesight MS-C8477-PC 0\nMilesight MS-C5321-FPE 0\nMilesight MS-Cxx72-xxxPE 0\nMilesight MS-Cxx62-xxxPE 0\nMilesight MS-Cxx52-xxxPE 0\nMilesight MS-Cxx66-xxxPE 0\nMilesight MS-Cxx66-xxxGPE 0\nMilesight MS-Cxx61-xxxPE 0\nMilesight MS-Cxx67-xxxPE 0\nMilesight MS-Cxx71-xxxPE 0\nMilesight MS-Cxx41-xxxPE 0\nMilesight MS-Cxx76-PE 0\nMilesight MS-Cxx65-PE 0\nMilesight MS-Cxx66-xxxG1 0\nMilesight MS-Cxx62-xxxG1 0\nMilesight MS-Cxx72-xxxG1 0\nMilesight MS-CQxx31-xxxG1 0\nMilesight MS-CQxx68-xxxG1 0\nMilesight MS-CQxx72-xxxG1 0\nMilesight MS-Nxxxx-NxE 0\nMilesight MS-Nxxxx-xxC 0\nMilesight MS-Nxxxx-xxE 0\nMilesight MS-Nxxxx-xxG 0\nMilesight MS-Nxxxx-xxH 0\nMilesight MS-Nxxxx-xxT 0\nMilesight PMC8266-FPE 0\nMilesight PMC8266-FGPE 0\nMilesight PM3322-E 0\nMilesight TS4466-X4RIPG1 0\nMilesight TS5366-X12RIPG1 0\nMilesight TS8266-X4RIPG1 0\nMilesight TS4466-X4RIVPG1 0\nMilesight TS4466-RFIVPG1 0\nMilesight TS8266-X4RIVPG1 0\nMilesight TS8266-RFIVPG1 0\nMilesight TS4466-X4RIWG1 0\nMilesight TS8266-X4RIWG1 0\nMilesight TS5510-GVH 0\nMilesight TS5510-GH 0\nMilesight TS5511-GVH 0\nMilesight TS2966-X12TPE 0\nMilesight TS4466-X4RPE 0\nMilesight TS5366-X12PE 0\nMilesight TS8266-X4PE 0\nMilesight TS2966-X12TVPE 0\nMilesight TS4466-X4RVPE 0\nMilesight TS5366-X12VPE 0\nMilesight TS8266-X4VPE 0\nMilesight TS4441-X36RPE 0\nMilesight TS4441-X36RE 0\nMilesight TS4466-X4RWE 0\nMilesight TS8266-X4WE 0\nMilesight MS-C2964-RFLPC 0\nMilesight MS-C2972-RFLPC 0\nMilesight MS-C2966-RFLWPC 0\nMilesight TS2866-X4TPC 0\nMilesight TS2866-X4TVPC 0\nMilesight TS2866-X4TGPC 0\nMilesight TS2841-X36TPC 0\nMilesight TS2841-X36TPC/W 0\nMilesight TS2867-X5TPC 0\nMilesight TS2961-X12TPC 0\nMilesight TS8266-FPC/P 0\nMilesight MS-C2966-X12RLPC 0\nMilesight MS-C2966-X12RLVPC 0\nMilesight MS-C5366-X12LPC 0\nMilesight MS-C5366-X12LVPC 0\nMilesight MS-C5361-X12LPC 0\nMilesight MS-Cxx66-xxxxGOPC 0\nMilesight SC211 0\nMilesight SP111 0\nMilesight MS-Cxx66-RFIPKG1 0\nMilesight MS-Cxx72-RFIPKG1 0\nMilesight MS-Cxx66-FIPKG1 0\nMilesight MS-Cxx72-FIPKG1 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.6,
        "severity": "HIGH",
        "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",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "MS-Cxx63-PD",
    "version": "0",
    "vendor": "Milesight",
    "ai_description": "AI processing failed - no valid JSON found",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}