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CVE-2025-53770

CRITICALCISA KEV

9.8

Beschreibung

Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute code over a network. Microsoft is aware that an exploit for CVE-2025-53770 exists in the wild. Microsoft is preparing and fully testing a comprehensive update to address this vulnerability. In the meantime, please make sure that the mitigation provided in this CVE documentation is in place so that you are protected from exploitation.

CVE Details

CVSS v3.1 Bewertung9.8

SchweregradCRITICAL

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht7/20/2025

Zuletzt geandert10/27/2025

Quellekev

Honeypot-Sichtungen0

CISA KEV

HerstellerMicrosoft

ProduktSharePoint

SchwachstellennameMicrosoft SharePoint Deserialization of Untrusted Data Vulnerability

KEV Aufnahmedatum2025-07-20

Behebungsfrist2025-07-21

Ransomware-NutzungKnown

Betroffene Produkte

microsoft:sharepoint_server

Schwachen (CWE)

CWE-502

Referenzen

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770(secure@microsoft.com)

https://arstechnica.com/security/2025/07/sharepoint-vulnerability-with-9-8-severity-rating-is-under-exploit-across-the-globe/(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/kaizensecurity/CVE-2025-53770(af854a3a-2127-422b-91ae-364da2661108)

https://msrc.microsoft.com/blog/2025/07/customer-guidance-for-sharepoint-vulnerability-cve-2025-53770/(af854a3a-2127-422b-91ae-364da2661108)

https://news.ycombinator.com/item?id=44629710(af854a3a-2127-422b-91ae-364da2661108)

https://research.eye.security/sharepoint-under-siege/(af854a3a-2127-422b-91ae-364da2661108)

https://therecord.media/microsoft-sharepoint-zero-day-vulnerability-exploited-globally(af854a3a-2127-422b-91ae-364da2661108)

https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770(af854a3a-2127-422b-91ae-364da2661108)

https://www.darkreading.com/remote-workforce/microsoft-rushes-emergency-fix-exploited-sharepoint-toolshell-flaw(af854a3a-2127-422b-91ae-364da2661108)

https://www.forbes.com/sites/daveywinder/2025/07/20/microsoft-confirms-ongoing-mass-sharepoint-attack---no-patch-available/(af854a3a-2127-422b-91ae-364da2661108)

https://x.com/Shadowserver/status/1946900837306868163(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53770(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Korrelationen

Keine Korrelationen erfasst

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