A remote code execution vulnerability exists in Microsoft Dynamics 365 (on-premises) version 8 when the server fails to properly sanitize w…

published 2018-11-14 7y ago modified 2026-06-17 4mo ago also EUVD-2018-20224

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 9.9%; EPSS 9.9% chance of exploitation in 30 days, percentile 95%
public exploits: 0; none known

A remote code execution vulnerability exists in Microsoft Dynamics 365 (on-premises) version 8 when the server fails to properly sanitize web requests to an affected Dynamics server, aka "Microsoft Dynamics 365 (on-premises) version 8 Remote Code Execution Vulnerability." This affects Microsoft Dynamics 365.

Patch / fix

fixed in 1 links 1

microsoft dynamics_365 8.2.3.0003

portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8609 advisory

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Exploit prediction

9.90% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

Microsoft Microsoft Dynamics 365

Classification

Weakness

CWE-116 Improper Encoding or Escaping of Output

References

portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2018-8609
patch, vendor-advisory
securityfocus.com /bid/105894
vdb-entry, third-party-advisory

Sources

CVE List CVE-2018-8609
NVD CVE-2018-8609

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