CVE

CVE-2025-53770

P1⬤ KNOWN RANSOMWARE USE

Microsoft SharePoint Deserialization of Untrusted Data Vulnerability

Microsoft · SharePoint

Date added (CISA)

2025-07-20

Remediation due

2025-07-21

Known ransomware use

Yes

Remediation priority

P1 — known ransomware use · past CISA due date

Associated with

Related to

Lazarus Group (TraderTraitor cluster) / APT38 / BlueNoroff · SPECTREcampaignCorrelated cluster2026-09-16
BadIIScampaignCorrelated cluster2026-08-26
Lazarus Group (TraderTraitor cluster) / APT38 / BlueNoroff · ZshBucketcampaignCorrelated cluster2026-08-26

ATT&CK mapping

How this CVE is exploited or what it enables, from the CTID Mappings Explorer.