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CVE-2025-53770

CRITICALCISA KEV

9.8

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.19.8

SeveridadeCRITICAL

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado7/20/2025

Ultima modificacao10/27/2025

Fontekev

Avistamentos honeypot0

CISA KEV

FornecedorMicrosoft

ProdutoSharePoint

Nome da vulnerabilidadeMicrosoft SharePoint Deserialization of Untrusted Data Vulnerability

Data inclusao KEV2025-07-20

Prazo de remediacao2025-07-21

Uso em ransomwareKnown

Produtos afetados

microsoft:sharepoint_server

Fraquezas (CWE)

CWE-502

Referencias

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)

Correlacoes IOC

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