{"uuid": "1c4d902f-03d7-40f9-a428-0fb8587dbd7c", "vulnerability": {"vulnId": "CVE-2026-55040", "altId": []}, "gcve": {"origin_uuid": "caeb2787-0d58-4236-9039-7c86c3e566f3", "object_uuid": "1c4d902f-03d7-40f9-a428-0fb8587dbd7c"}, "status": {"exploited": true, "status_reason": "confirmed", "status_updated_at": "2026-08-12T21:37:46+02:00"}, "timestamps": {"asserted_at": "2026-08-12T19:37:46+00:00", "recorded_at": "2026-10-02T07:08:31+00:00", "first_seen_at": "2026-08-12T19:37:46+00:00"}, "scope": {"notes": "Microsoft SharePoint Server Security Feature Bypass Vulnerability | Affected: Microsoft / Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition | CVSS: 9.1 (CRITICAL) | EPSS: 0.17535 | Used in malware: unknown | Listed 7 days ahead of CISA KEV | Not yet in CISA KEV: False"}, "evidence": [{"type": "public_report", "source": "previdian", "signal": "successful_exploitation", "confidence": 0.7, "details": {"feed": "Previdian (previdian.com)", "title": "Microsoft SharePoint Server Security Feature Bypass Vulnerability", "cve_id": "CVE-2026-55040", "vendor": "Microsoft", "ghsa_id": "GHSA-GRXW-7CVC-96RV", "product": "Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition", "added_date": "2026-08-12T19:37:46.763Z", "cvss_score": 9.1, "epss_score": 0.17535, "previous_ids": [], "cvss_severity": "CRITICAL", "virtual_patch": false, "cvss_estimated": false, "epss_percentile": 0.97051, "used_in_malware": "unknown", "vulnerability_id": "CVE-2026-55040", "ahead_of_cisa_kev": {"unit": "day", "count": 7}, "not_yet_in_cisa_kev": false}}], "references": [{"id": "CVE-2026-55040", "url": "https://www.cve.org/CVERecord?id=CVE-2026-55040"}, {"id": "GHSA-GRXW-7CVC-96RV", "url": "https://github.com/advisories/GHSA-GRXW-7CVC-96RV"}, {"id": "previdian", "url": "https://previdian.com/CVE-2026-55040"}]}