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No exploitation reportedFix available

CVE-2026-65772

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

No exploitation reported by the sources we read.

  • Published2026-09-08
  • Fixed in9.1.0046.0006
  • WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC
  1. 2026-09-0817:17CVE publishedCNA

Versions per branch

NVD
Microsoft dynamics 365
BranchAffectedFixed in
9.1≥ 9.1, < 9.1.0046.00069.1.0046.0006

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As microsoft, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Microsoft Dynamics 365 (on-premises) version 9.1
    Affected
    • ≥ 9.0, < 9.1.0046.0006fixed in 9.1.0046.0006custom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-31

Fix

  1. Update Microsoft dynamics 365 to 9.1.0046.0006

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2026-09-08
Last Modified
2026-10-07
NVD status
Analyzed
GitHub Advisory
GHSA-2vrx-2v3j-84hp

Frequently asked questions

What is CVE-2026-65772?

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

Is CVE-2026-65772 actively exploited?

Active exploitation of CVE-2026-65772 has not been confirmed. Its EPSS score was 1.7% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-65772?

CVE-2026-65772 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record