HIGH
Microsoft SharePoint Remote Code Execution Vulnerability
Published Aug 11, 2026
8.8
HIGHCVSS 3.1
EPSS 1.69%
Description
Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.
Affected products
-
- Version 16.0.0StatusaffectedConstraints<16.0.19725.20522
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Server Subscription Edition | n/a |
|
- < 16.0.19725.20522
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-56573 Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70321 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-56573 | Advisory | |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70321 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Aug 11, 2026
Updated Sep 29, 2026
Reserved Aug 4, 2026
Link CVE-2026-70321
CISA Vulnrichment
Updated Aug 11, 2026
ENISA EUVD
EUVD-2026-56573 Assigner microsoft
Published Aug 11, 2026
Updated Sep 29, 2026
Exploited since n/a
Link EUVD-2026-56573