PoC Index

CVE-2025-53770

KEV RANSOMWARECRITICAL 9.8EPSS 100.0%

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.

CVSS v3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
100.00% chance of exploitation in the next 30 days, 100th percentile
CISA KEV
added 2025-07-20, used in ransomware campaigns
Nuclei
critical · CWE-502
Published
2025-07-20
Updated
2026-08-04

Proof-of-concept exploits (38)

Nuclei templates (1)

Metasploit modules (1)

ExploitDB entries (1)

Exploit collections (1)

References

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