CVE-2021-40457 json
Microsoft Dynamics 365 Customer Engagement Cross-Site Scripting Vulnerability
published 2021-10-13 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-27634
- cvss
- 7.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 76%
- public exploits
- 0
- none known
Summary
Microsoft Dynamics 365 Customer Engagement Cross-Site Scripting Vulnerability
Patch / fix
- Microsoft Microsoft Dynamics 365 Customer Engagement V9.1 9.1.4
- Microsoft Microsoft Dynamics 365 Customer Engagement V9.0 9.0.31.7
Exploit prediction
1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:F/RL:O/RC:C |
| CNA | 3.1 | 7.4 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Affected products
- Microsoft Microsoft Dynamics 365 Customer Engagement V9.1
- Microsoft Microsoft Dynamics 365 Customer Engagement V9.0
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2021-40457
patch, vendor-advisory
Sources
- CVE List CVE-2021-40457
- NVD CVE-2021-40457
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