{"uuid": "55d6c9b1-6d03-4d64-9932-622f93a26882", "vulnerability": {"vulnId": "CVE-2026-20963", "altId": []}, "gcve": {"origin_uuid": "405284c2-e461-4670-8979-7fd2c9755a60", "object_uuid": "55d6c9b1-6d03-4d64-9932-622f93a26882"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2026-03-18T00:00:00+00:00"}, "characteristics": {}, "timestamps": {"asserted_at": "2026-03-18T00:00:00Z", "recorded_at": "2026-03-18T21:00:01Z", "first_seen_at": "2026-03-18T00:00:00Z"}, "scope": {"notes": "KEV entry: Microsoft SharePoint Deserialization of Untrusted Data Vulnerability | Affected: Microsoft / SharePoint | Description: Microsoft SharePoint contains a deserialization of untrusted data vulnerability that allows an unauthorized attacker to execute code over a network. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2026-03-21 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20963 ; https://nvd.nist.gov/vuln/detail/CVE-2026-20963"}, "evidence": [{"type": "vendor_report", "source": "cisa-kev", "signal": "successful_exploitation", "confidence": 0.8, "details": {"cwes": ["CWE-502"], "feed": "CISA Known Exploited Vulnerabilities Catalog", "product": "SharePoint", "due_date": "2026-03-21", "date_added": "2026-03-18", "vendorProject": "Microsoft", "vulnerabilityName": "Microsoft SharePoint Deserialization of Untrusted Data Vulnerability", "knownRansomwareCampaignUse": "Unknown"}}], "references": [{"id": "CVE-2026-20963", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2026-20963"}]}