Vulnerabilities CVE-2025-53770

CVE-2025-53770

Critical

Open

KEV

TLP:CLEAR

Microsoft SharePoint Server Remote Code Execution Vulnerability

NVD CVE.org

AI Analysis

No AI analysis yet.

Description

Microsoft — SharePoint — Microsoft SharePoint Server on-premises contains a deserialization of untrusted data vulnerability that could allow an unauthorized attacker to execute code over a network. This vulnerability could be chained with CVE-2025-53771. CVE-2025-53770 is a patch bypass for CVE-2025-49704, and the updates for CVE-2025-53770 include more robust protection than those for CVE-2025-49704.

Details

CVSS Score: 9.8
EPSS Score ⓘ: 99.98%

100th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:W/RC:C
Confidence: 100%
Published: Jul 20, 2025
Last Modified: Aug 4, 2026
CISA KEV
Date Added: Jul 20, 2025
Patch Due: Jul 21, 2025
Required Action: 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.

Notes

No notes yet. Click "Add Note" to create the first analysis note.

Opinions

No opinions yet. Be the first to assess this intelligence.