Summary
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.
- Vendor
- Microsoft
- Product
- SharePoint
- Added to KEV
- Jul 20, 2025
- Remediation due
- Jul 21, 2025 (US federal deadline)
- Ransomware use
- Known
- Weakness
- CWE-502
- EPSS
- 100.0% as of Nov 10
In the news
- No Asia-Pacific article names this CVE yet.
References