CVE-2026-65772

highpriority · track · 36EPSS 0.017 · 77 %ileNLUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.69% (77th) EPSS

CVSS 8.8 · high

Is it mine?

6 products

Check your exposure

Who says so?

3 sources

msrc_csaf · ncsc_nl · nvd

EPSS · scored 2026-10-27

Deserialization of untrusted data in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedMicrosoft Dynamics 365 (on-premises) version 9.1msrc_csaf
9.1.0046.0006:Security Update:https://support.microsoft.com/en-US/servicing/dynamics/crm/update/2026/julykbarticle
https://support.microsoft.com/en-US/servicing/dynamics/crm/update/2026/julykbarticle

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · secure@microsoft.com USexploitability 2.8 · impact 5.9

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502US

affected products (6)

Products and version ranges known to be affected.

Microsoft Microsoft Dynamics 365 (on-premises) version 9.1all versionsfixedmsrc_csafUS
Microsoft Microsoft Dynamics 365 (on-premises) version 9.1< 9.1.0046.0006msrc_csafUS
Microsoft Microsoft Dynamics 365 (on-premises) version 9.1≤ vers:unknown/*ncsc_nlNL
Microsoft Power Automate agent for virtual desktops≤ vers:unknown/*ncsc_nlNL
Microsoft Power Automate for Desktop≤ vers:unknown/*ncsc_nlNL
microsoft dynamics 3659.1 → 9.1.0046.0006nvdUScpe:2.3:a:microsoft:dynamics_365:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0348Kwetsbaarheden verholpen in Microsoft DynamicsNL2026-09-08csaf · ncsc_nlNL
Microsoft heeft 2 kwetsbaarheden verholpen in Dynamics, zowel online als on-premise.
msrc_CVE-2026-65772Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability2026-09-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

sources

Which sources assert this record, and when.

msrc_csaf ncsc_nl nvd NVD CVE.org MITRE

published 2026-09-08modified 2026-10-07

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65772PatchVendor Advisory

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan