CVE-2021-34524 json
Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
published 2021-08-12 5 y ago modified 2026-08-10 2 mo ago also EUVD-2021-21178
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.6%
- EPSS 3.6% chance of exploitation in 30 days, percentile 89%
- public exploits
- 0
- none known
Summary
Microsoft Dynamics 365 On-Premises Remote Code Execution Vulnerability
Patch / fix
- Microsoft Microsoft Dynamics 365 (on-premises) version 9.0 9.0.31.7
- Microsoft Microsoft Dynamics 365 (on-premises) version 9.1 9.1.3.11
Exploit prediction
3.62% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |
| CNA | 3.1 | 8.8 | CVSS:3.1/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 (on-premises) version 9.0
- Microsoft Microsoft Dynamics 365 (on-premises) version 9.1
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2021-34524
vendor-advisory, patch
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2021-34524
patch, vendor-advisory
Sources
- CVE List CVE-2021-34524
- NVD CVE-2021-34524
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.