Microsoft Dynamics 365 vulnerabilities

103 CVEs affecting Microsoft Dynamics 365, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-77908, published 2026-09-08.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2018-8609, published 2018-11-14. High severity, CVSS 8.8. EPSS: 9.9% chance of exploitation in the next 30 days. 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…
• CVE-2022-34700, published 2022-09-13. High severity, CVSS 8.8. EPSS: 3.7% chance of exploitation in the next 30 days. Microsoft Dynamics CRM (on-premises) Remote Code Execution Vulnerability
• CVE-2021-34524, published 2021-08-12. High severity, CVSS 8.1. EPSS: 3.6% chance of exploitation in the next 30 days. Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
• CVE-2019-1229, published 2019-08-14. High severity, CVSS 8.8. EPSS: 3.5% chance of exploitation in the next 30 days. An elevation of privilege vulnerability exists in Dynamics On-Premise v9. An attacker who successfully exploited the vulnerability could leverage a customizer privilege within Dynamics to gain…
• CVE-2020-16862, published 2020-09-11. High severity, CVSS 7.1. EPSS: 3.4% chance of exploitation in the next 30 days. <p>A remote code execution vulnerability exists in Microsoft Dynamics 365 (on-premises) when the server fails to properly sanitize web requests to an affected Dynamics server. An attacker who…
• CVE-2021-24101, published 2021-02-25. Medium severity, CVSS 6.5. EPSS: 3.1% chance of exploitation in the next 30 days. Microsoft Dataverse Information Disclosure Vulnerability
• CVE-2022-35805, published 2022-09-13. High severity, CVSS 8.8. EPSS: 3.1% chance of exploitation in the next 30 days. Microsoft Dynamics CRM (on-premises) Remote Code Execution Vulnerability
• CVE-2020-17158, published 2020-12-10. High severity, CVSS 8.8. EPSS: 3% chance of exploitation in the next 30 days. Microsoft Dynamics 365 for Finance and Operations (on-premises) Remote Code Execution Vulnerability
• CVE-2020-17152, published 2020-12-10. High severity, CVSS 8.8. EPSS: 3% chance of exploitation in the next 30 days. Microsoft Dynamics 365 for Finance and Operations (on-premises) Remote Code Execution Vulnerability
• CVE-2022-23259, published 2022-04-15. High severity, CVSS 8.8. EPSS: 2.9% chance of exploitation in the next 30 days. Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability

Latest

• CVE-2026-77908, published 2026-09-08. High severity, CVSS 8.8. EPSS: 1% chance of exploitation in the next 30 days. Improper control of generation of code ('code injection') in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.
• CVE-2026-65772, published 2026-09-08. High severity, CVSS 8.8. EPSS: 1.7% chance of exploitation in the next 30 days. Deserialization of untrusted data in Microsoft Dynamics 365 allows an authorized attacker to execute code over a network.
• CVE-2026-66301, published 2026-08-11. Medium severity, CVSS 6.5. EPSS: 1% chance of exploitation in the next 30 days. Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.
• CVE-2026-65815, published 2026-08-11. High severity, CVSS 8.8. EPSS: 1.7% chance of exploitation in the next 30 days. Deserialization of untrusted data in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.
• CVE-2026-47647, published 2026-06-18. Critical severity, CVSS 9.9. EPSS: 0.8% chance of exploitation in the next 30 days. Improper access control in Microsoft Dynamics 365 allows an authorized attacker to elevate privileges over a network.
• CVE-2026-40371, published 2026-06-09. High severity, CVSS 8.8. EPSS: 0.8% chance of exploitation in the next 30 days. Improper handling of insufficient permissions or privileges in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to elevate privileges over a network.
• CVE-2026-42898, published 2026-05-12. Critical severity, CVSS 9.9. EPSS: 1% chance of exploitation in the next 30 days. Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.
• CVE-2026-42833, published 2026-05-12. Critical severity, CVSS 9.1. EPSS: 0.9% chance of exploitation in the next 30 days. Improper control of generation of code ('code injection') in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to execute code over a network.
• CVE-2026-32210, published 2026-04-23. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. Server-side request forgery (ssrf) in Microsoft Dynamics 365 (Online) allows an unauthorized attacker to perform spoofing over a network.
• CVE-2026-33103, published 2026-04-14. Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days. Improper access control in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information locally.