CVE-2026-88131

criticalpriority · track · 39EPSS 0.012 · 69 %ileDENLRUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.23% (69th) EPSS

CVSS 9.8 · critical

Is it mine?

8 products

Check your exposure

Who says so?

5 sources

fstec_bdu · cert_bund · msrc_csaf · ncsc_nl

EPSS · scored 2026-10-27

Deserialization of untrusted data in Microsoft Dataverse allows an unauthorized attacker to execute code over a network.

cvss

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

9.8

010

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

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · secure@microsoft.com USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/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: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-502USCWE-502USCWE-502USCWE-502USCWE-502US

affected products (8)

Products and version ranges known to be affected.

Microsoft Dataverseall versionscert_bundDEcpe:/a:microsoft:dataverse:-
Microsoft Corp Microsoft Dataverseall versionsfstec_bduRU
Microsoft Microsoft Dataverseall versionsfixedmsrc_csafUS
Microsoft Microsoft Dataverse≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics 365 (on-premises) version 9.1≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics NAV 2017 on Windows Server 2012≤ vers:unknown/*ncsc_nlNL
Microsoft Microsoft Dynamics NAV 2018 on Windows Server 2012≤ vers:unknown/*ncsc_nlNL
microsoft dataverseall versionsnvdUScpe:2.3:a:microsoft:dataverse:*:*:*:*:*:*:*:*

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2026-0424Kwetsbaarheden verholpen in Microsoft DynamicsNL2026-10-13csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in diverse Dynamics componenten.
WID-SEC-W-2026-3832Microsoft Dataverse: Schwachstelle ermöglicht CodeausführungDeutsch2026-10-08csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Microsoft Dataverse ausnutzen, um beliebigen Programmcode auszuführen.
msrc_CVE-2026-88131Microsoft Dataverse Remote Code Execution Vulnerability2026-10-08csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (1)

Other names and identifiers for this entity.

BDU:2026-16749 fstec_bdu

sources

Which sources assert this record, and when.

fstec_bdu cert_bund msrc_csaf ncsc_nl nvd NVD CVE.org MITRE

published 2026-10-08modified 2026-10-19

references (1) nvd

External citations — patches, advisories, analysis.

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88131Vendor Advisory

scry

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