CVE-2025-53770

Katalog CVE

CVSS 9.8 · Critical KEV · sudah dieksploitasi Dipakai ransomware EPSS 100,0%

Kerentanan Deserialization of Untrusted Data pada microsoft sharepoint server. Skor CVSS 3.1 9.8 (Critical) menurut microsoft.com. Masuk katalog KEV CISA pada 20 Juli 2025, artinya sudah terbukti dieksploitasi. Tercatat dipakai dalam kampanye ransomware.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

20 Juli 2025

Terakhir diubah

4 Agustus 2026

Status NVD

Analyzed

CVSS 3.1

9.8 (Critical), sumber microsoft.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

100,0% peluang dieksploitasi; lebih tinggi dari 99,9% CVE lain

Known Exploited Vulnerabilities (CISA)

Nama

Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

Masuk KEV

20 Juli 2025

Tenggat CISA

21 Juli 2025 (untuk instansi federal AS)

Ransomware

Tercatat dipakai dalam kampanye ransomware

Tindakan wajib

Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-53770 advisory vendor
• https://msrc.microsoft.com/blog/2025/07/customer-guidance-for-sharepoint-vulnerability-cve-2025-53770/ mitigasi · advisory vendor
• https://research.eye.security/sharepoint-under-siege/ exploit · mitigasi · advisory pihak ketiga
• https://www.cisa.gov/news-events/alerts/2025/07/20/microsoft-releases-guidance-exploitation-sharepoint-vulnera... mailing list · advisory pihak ketiga · pemerintah AS
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53770 pemerintah AS
• https://x.com/Shadowserver/status/1946900837306868163 advisory pihak ketiga
• https://arstechnica.com/security/2025/07/sharepoint-vulnerability-with-9-8-severity-rating-is-under-exploit-ac... exploit · press/media coverage
• https://github.com/kaizensecurity/CVE-2025-53770 exploit
• https://news.ycombinator.com/item?id=44629710 issue tracking
• https://therecord.media/microsoft-sharepoint-zero-day-vulnerability-exploited-globally press/media coverage
• https://www.bleepingcomputer.com/news/microsoft/microsoft-sharepoint-zero-day-exploited-in-rce-attacks-no-patc... press/media coverage
• https://www.darkreading.com/remote-workforce/microsoft-rushes-emergency-fix-exploited-sharepoint-toolshell-fla... press/media coverage
• https://www.forbes.com/sites/daveywinder/2025/07/20/microsoft-confirms-ongoing-mass-sharepoint-attack---no-pat... press/media coverage