CVE-2026-26106
Microsoft SharePoint Server Remote Code Execution Vulnerability
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- 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 SharePoint Server Remote Code Execution Vulnerability
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Record
CVE-2026-26106- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-20
- Updated
- 2026-11-02
EUVDEUVD-2026-10669
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Record
EUVD-2026-10669- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-prhf-v4c5-x65v
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute...
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Record
GHSA-prhf-v4c5-x65v- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
NVD
Improper input validation in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
- Record
CVE-2026-26106- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-26106 is a high vulnerability (CVSS 8.8) in Microsoft Sharepoint Server, published March 10, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.58%, the 75th percentile. No source names a fixed version.