Microsoft Security Update Guide · Power Platform
Microsoft Dataverse Remote Code Execution Vulnerability
Published
What does this mean?
- Remote Code Execution. An attacker can run their own code on the system remotely. This is the most serious type: it can lead to taking over the system.
- It can be exploited over the network (including from the internet if the service is reachable there), without an account and without any user action.
- CVSS 9.8 out of 10: critical. Microsoft rates it Critical.
- What should you do? Nothing: Microsoft fixed this in the cloud service. There is no update to install.
Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.
Show NCSC advisory (1)
NCSC-2026-0424 · v1.00Likelihood M · Impact H
Kwetsbaarheden verholpen in Microsoft DynamicsMicrosoft heeft kwetsbaarheden verholpen in diverse Dynamics componenten. Een kwaadwillende kan de kwetsbaarheden misbruiken om aanvallen uit te voeren die kunnen leiden tot de categorieën schade zoals benoemd in onderstaande tabellen:
What kind of flaw is this?
- CWE-502: Deserialization of Untrusted Data
The software turns received data into objects without checking it. With crafted data an attacker can get code to run.
Key facts
Released
8 okt 2026
Impact
Remote Code Execution
Max severity
Critical
Weakness
CVSS 3.1
9.8 / 8.5 (base / temporal)
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CPublicly disclosed
No
Exploited
No
Exploitability assessment
N/A
Customer action required
No, fixed by Microsoft
Links
CVSS metrics
| Base score metrics | |
|---|---|
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity | High |
| Availability | High |
| Temporal score metrics | |
| Exploit Code Maturity | Unproven |
| Remediation Level | Official Fix |
| Report Confidence | Confirmed |
Affected products and updates
| Product | Update | Build |
|---|---|---|
| Microsoft Dataverse | — | — |
FAQ
- Why are there no links to an update or instructions with steps that must be taken to protect from this vulnerability?
- This vulnerability has already been fully mitigated by Microsoft. There is no action for users of this service to take. The purpose of this CVE is to provide further transparency. Please see Toward greater transparency: Unveiling Cloud Service CVEs for more information.
Revisions
| Version | Date | Note |
|---|---|---|
| 1 | 8 okt 2026 | Information published. |
This is in the weekly digest for week 41 · What changed this week? →
View at Microsoft → ← All security advisories
Source: Microsoft Security Update Guide. 365Fanatic is not affiliated with Microsoft.
