CVE-2026-42898

criticalpriority · track · 0EPSS 0.012 · 68 %ileDEEUNLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.19% (68th) EPSS

CVSS 9.9 · critical

Is it mine?

19 products

Check your exposure

Who says so?

7 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) 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
9.1.45.11:Security Update:https://support.microsoft.com/help/5078943
https://support.microsoft.com/help/5078943

cvss

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

9.9

010

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

v3.19.9criticalAV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · ENISA EU

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · secure@microsoft.com USexploitability 3.1 · impact 6

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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-94USCWE-94USCWE-94USCWE-94US

affected products (19)

Products and version ranges known to be affected.

Microsoft Dynamics 365 (on-premises) version 9.1all versionscert_bundDEcpe:/a:microsoft:dynamics_365:%28on-premises%29_version_9.1
Microsoft Dynamics 365 Business Central 2024 Release Wave 2all versionscert_bundDEcpe:/a:microsoft:dynamics_365:business_central_2024_release_wave_2
Microsoft Dynamics 365 Business Central 2026 Release Wave 1all versionscert_bundDEcpe:/a:microsoft:dynamics_365:business_central_2026_release_wave_1
Microsoft Dynamics 365 Business Central Release Wave 1 2025all versionscert_bundDEcpe:/a:microsoft:dynamics_365:business_central_release_wave_1_2025
Microsoft Dynamics 365 Business Central Release Wave 2 2025all versionscert_bundDEcpe:/a:microsoft:dynamics_365:business_central_release_wave_2_2025
Microsoft Dynamics 365 Customer Insightsall versionscert_bundDEcpe:/a:microsoft:dynamics_365:customer_insights
Microsoft Microsoft Dynamics 365 (on-premises) version 9.19.0 → 9.1.45.11enisa_euvdEU
Microsoft Corp Microsoft Dynamics 365 (on-premises)9.1 → 9.1.44.15fstec_bduRU
Microsoft Microsoft Dynamics 365 (on-premises) version 9.1all versionsfixedmsrc_csafUS
Microsoft Microsoft Dynamics 365 (on-premises) version 9.1< 9.1.45.11msrc_csafUS
Microsoft Dynamics 365≤ vers:unknown/*ncsc_nlNL
Microsoft Dynamics 365 Customer Insights≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics 365 (on-premises) version 9.1≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics 365 Business Central 2024 Release Wave 2≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics 365 Business Central 2026 Release Wave 1≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics 365 Business Central Release Wave 1 2025≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics 365 Business Central Release Wave 2 2025≤ vers:unknown/*ncsc_nlNL
Microsoft Power Automate for Desktop≤ vers:unknown/*ncsc_nlNL
microsoft dynamics 3659.1.1.914 → 9.1.45.11nvdUScpe:2.3:a:microsoft:dynamics_365:*:*:*:*:*:*:*:*

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0145Kwetsbaarheden verholpen in Microsoft DynamicsNL2026-05-12csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in diverse componenten van Dynamics.
WID-SEC-W-2026-1485Microsoft Dynamics 365: Mehrere SchwachstellenDeutsch2026-05-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Dynamics 365 ausnutzen, um beliebigen Programmcode auszuführen, um seine Privilegien zu erhöhen, und um Informationen offenzulegen.
msrc_CVE-2026-42898Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability2026-05-12csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund msrc_csaf ncsc_nl nvd NVD CVE.org MITRE

published 2026-05-12modified 2026-10-26

references (4)

External citations — patches, advisories, analysis.

scry

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