CVE-2026-55040
Weak authentication in Microsoft Office SharePoint allows an unauthorized attacker to bypass a security feature over a network.
- Affected products
- Sharepoint Server
- Microsoft Sharepoint Server
- < 16.0.19725.20434, 2016, 2019
- CVSS 3.1
- 9.1 CRITICAL
- EPSS
- 1.6% (74th percentile)
- Weakness
- CWE-1390
- NVD status
- Analyzed
- Published
- 2026-07-14
CVE-2026-55040 at NVD
No indexed exploits for CVE-2026-55040 yet
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No exploit for CVE-2026-55040 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.