WID-SEC-W-2026-1652
Vulnerability from csaf_certbund - Published: 2026-05-21 22:00 - Updated: 2026-05-25 22:00Summary
Microsoft SharePoint Server 2016 und SharePoint Server 2019: Schwachstelle ermöglicht Codeausführung
Severity
Hoch
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Microsoft Sharepoint Services ist ein Portalsystem für die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u.a. über Webseiten zur Verfügung gestellt.
Microsoft Sharepoint ist ein Portalsystem für die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u. a. über Webseiten zur Verfügung gestellt.
Angriff: Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft SharePoint Server 2016, Microsoft SharePoint Server 2019 und Microsoft SharePoint ausnutzen, um beliebigen Programmcode auszuführen.
Betroffene Betriebssysteme: - Windows
Affected products
Known affected
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Microsoft SharePoint Server Subscription Edition <16.0.19725.20280
Microsoft / SharePoint
|
Server Subscription Edition <16.0.19725.20280 | ||
|
Microsoft SharePoint Server 2019 <16.0.10417.20128
Microsoft / SharePoint Server 2019
|
<16.0.10417.20128 | ||
|
Microsoft SharePoint Server 2016 <16.0.5552.1002
Microsoft / SharePoint Server 2016
|
<16.0.5552.1002 |
References
3 references
{
"document": {
"aggregate_severity": {
"text": "hoch"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "Microsoft Sharepoint Services ist ein Portalsystem f\u00fcr die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u.a. \u00fcber Webseiten zur Verf\u00fcgung gestellt.\r\nMicrosoft Sharepoint ist ein Portalsystem f\u00fcr die zentrale Verwaltung von Dokumenten und Anwendungen. Die Inhalte werden u. a. \u00fcber Webseiten zur Verf\u00fcgung gestellt.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Microsoft SharePoint Server 2016, Microsoft SharePoint Server 2019 und Microsoft SharePoint ausnutzen, um beliebigen Programmcode auszuf\u00fchren.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Windows",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-1652 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1652.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-1652 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1652"
},
{
"category": "external",
"summary": "Microsoft Security Advisory CVE-2026-45659 vom 2026-05-21",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45659"
}
],
"source_lang": "en-US",
"title": "Microsoft SharePoint Server 2016 und SharePoint Server 2019: Schwachstelle erm\u00f6glicht Codeausf\u00fchrung",
"tracking": {
"current_release_date": "2026-05-25T22:00:00.000+00:00",
"generator": {
"date": "2026-05-26T12:17:55.131+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.6.0"
}
},
"id": "WID-SEC-W-2026-1652",
"initial_release_date": "2026-05-21T22:00:00.000+00:00",
"revision_history": [
{
"date": "2026-05-21T22:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-05-25T22:00:00.000+00:00",
"number": "2",
"summary": "Referenz(en) aufgenommen: EUVD-2026-31518"
}
],
"status": "final",
"version": "2"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "Server Subscription Edition \u003c16.0.19725.20280",
"product": {
"name": "Microsoft SharePoint Server Subscription Edition \u003c16.0.19725.20280",
"product_id": "T054523"
}
},
{
"category": "product_version",
"name": "Server Subscription Edition 16.0.19725.20280",
"product": {
"name": "Microsoft SharePoint Server Subscription Edition 16.0.19725.20280",
"product_id": "T054523-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:microsoft:sharepoint:server_subscription_edition__16.0.19725.20280"
}
}
}
],
"category": "product_name",
"name": "SharePoint"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c16.0.5552.1002",
"product": {
"name": "Microsoft SharePoint Server 2016 \u003c16.0.5552.1002",
"product_id": "T054521"
}
},
{
"category": "product_version",
"name": "16.0.5552.1002",
"product": {
"name": "Microsoft SharePoint Server 2016 16.0.5552.1002",
"product_id": "T054521-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:microsoft:sharepoint_server_2016:16.0.5552.1002"
}
}
}
],
"category": "product_name",
"name": "SharePoint Server 2016"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c16.0.10417.20128",
"product": {
"name": "Microsoft SharePoint Server 2019 \u003c16.0.10417.20128",
"product_id": "T054522"
}
},
{
"category": "product_version",
"name": "16.0.10417.20128",
"product": {
"name": "Microsoft SharePoint Server 2019 16.0.10417.20128",
"product_id": "T054522-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:microsoft:sharepoint_server_2019:16.0.10417.20128"
}
}
}
],
"category": "product_name",
"name": "SharePoint Server 2019"
}
],
"category": "vendor",
"name": "Microsoft"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2026-45659",
"product_status": {
"known_affected": [
"T054523",
"T054522",
"T054521"
]
},
"release_date": "2026-05-21T22:00:00.000+00:00",
"title": "CVE-2026-45659"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…