CVE-2026-66302Published

Skype for Business Remote Code Execution Vulnerability

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-66302

Published

Skype for Business Server 2015 CU13

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Microsoft",
                    "product": "Skype for Business Server 2015 CU13",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "9319.0",
                            "lessThan": "6.0.9319.885",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Skype for Business Server 2019 CU8

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Microsoft",
                    "product": "Skype for Business Server 2019 CU8",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "2046.0",
                            "lessThan": "7.0.2046.569",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Skype for Business Server Subscription Edition CU1

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "Microsoft",
                    "product": "Skype for Business Server Subscription Edition CU1",
                    "platforms": [
                        "x64-based Systems"
                    ],
                    "versions": [
                        {
                            "version": "2046.0",
                            "lessThan": "7.0.2046.879",
                            "versionType": "custom",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON