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CVE-2026-42833

35
FAUCET Score

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.

First published: May 12, 2026Last modified: Jun 1, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.1, < 9.1.45.11CPE matchmatch criteria
cpe:2.3:a:microsoft:dynamics_365:*:*:*:*:on-premises:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 47th percentile among its peer group of 462 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.7 Bluesky, 0.4 Mastodon, and 1.7 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: Microsoft Dynamics 365 (on-premises) version 9.1Fixed in: 9.1.45.11
View patch
microsoftvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

microsoft2026-May/CVE-2026-42833Important

Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

May 12, 2026

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2026-42833
Vendor Advisory