CVE-2025-53770
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.
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.
Vendor
Product
CWE
Yayın Tarihi
2025-07-20 01:15:30
Güncelleme
2025-10-27 17:12:40
Source Identifier
secure@microsoft.com
KEV Date Added
2025-07-20
Kategoriler
Referanslar
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770
https://arstechnica.com/security/2025/07/sharepoint-vulnerability-with-9-8-severity-rating-is-under-exploit-across-the-globe/
https://github.com/kaizensecurity/CVE-2025-53770
https://msrc.microsoft.com/blog/2025/07/customer-guidance-for-sharepoint-vulnerability-cve-2025-53770/
https://news.ycombinator.com/item?id=44629710
https://research.eye.security/sharepoint-under-siege/
https://therecord.media/microsoft-sharepoint-zero-day-vulnerability-exploited-globally
https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patch-available/
https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnerability-cve-2025-53770
https://www.darkreading.com/remote-workforce/microsoft-rushes-emergency-fix-exploited-sharepoint-toolshell-flaw
https://www.forbes.com/sites/daveywinder/2025/07/20/microsoft-confirms-ongoing-mass-sharepoint-attack---no-patch-available/
https://x.com/Shadowserver/status/1946900837306868163
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53770