CVE-2026-109466
Microsoft Office SharePoint Elevation of Privilege Vulnerability
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over an adjacent network.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Office SharePoint Elevation of Privilege Vulnerability
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over an adjacent network.
- Record
CVE-2026-109466- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-862
- Updated
- 2026-11-10
EUVDEUVD-2026-121578
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over an adjacent network.
- Record
EUVD-2026-121578- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-10
GitHub AdvisoriesGHSA-j97v-48q5-r4r4
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate...
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over an adjacent network.
- Record
GHSA-j97v-48q5-r4r4- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-862
- Updated
- 2026-11-10
NVD
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over an adjacent network.
- Record
CVE-2026-109466- CVSS 3.1
- 8.0 High
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-862
- Updated
- 2026-11-11
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| published | EUVD | |
| published | EUVD, NVD | |
| aliases, references | GitHub Advisories | |
| cwes, references, severity, title | CVE List | |
| first indexed | EUVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-109466 is a high vulnerability (CVSS 8.0) in Microsoft Sharepoint Server Subscription Edition, published November 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.50%, the 43rd percentile. No source names a fixed version.