CVE-2026-56164: Microsoft SharePoint Server
EPSS1.0%No. 1675 of 1739 in KEV
CVE year2026listed the same year
Same vendor in KEV389
Same product5
| Field | Value |
|---|---|
| Vendor | Microsoft |
| Product | SharePoint Server |
| Name | Microsoft SharePoint Server Missing Authentication for Critical Function Vulnerability |
| Added to KEV | 2026-07-14 |
| US federal due date | 2026-07-17 |
| Ransomware use | Unknown |
| CWE | CWE-306 |
CISA description
Microsoft SharePoint contains a missing authentication for critical function vulnerability that allows an unauthorized attacker to elevate privileges over a network.
Other entries for this product
| CVE | Vendor / product | Added | EPSS | Ransomware |
|---|---|---|---|---|
| CVE-2026-45659 | Microsoft SharePoint Server | 2026-07-01 | 2.7% | Known |
| CVE-2026-32201 | Microsoft SharePoint Server | 2026-04-14 | 43.3% | Unknown |
| CVE-2023-24955 | Microsoft SharePoint Server | 2024-03-26 | 84.9% | Known |
| CVE-2023-29357 | Microsoft SharePoint Server | 2024-01-10 | 99.9% | Known |
Data from CISA's Known Exploited Vulnerabilities (KEV) catalog. EPSS is FIRST's estimated probability of exploitation activity in the next 30 days, refreshed weekly. Always follow the vendor's official guidance.
About this page
A Microsoft SharePoint Server vulnerability added to CISA's Known Exploited Vulnerabilities catalog on 2026-07-14.