CVE-2026-102866
Microsoft Office SharePoint Elevation of Privilege Vulnerability
- State
- Published
- Severity
- 8.1 High
- Published
- Oct 13, 2026
- Updated
- Oct 31, 2026
- Reserved
- Sep 29, 2026
Description
Improper verification of cryptographic signature in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.1 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | microsoft |
Weaknesses
- CWE-347 Improper Verification of Cryptographic Signature
Affected Products
| Product | Versions |
|---|---|
Microsoft SharePoint Server Subscription EditionMicrosoft |
|
References
- Microsoft Office SharePoint Elevation of Privilege Vulnerabilityvendor-advisorypatch
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