Microsoft has published an advisory for an information‑disclosure flaw affecting Dynamics 365 FastTrack Implementation Assets that can allow an attacker to disclose private personal information over a network — but the public record and vendor sources show a mismatch in the CVE identifier, so organizations must verify the exact advisory entry in Microsoft’s Security Update Guide and apply recommended fixes immediately.
Microsoft’s FastTrack program and accompanying implementation assets are designed to help customers deploy and configure Dynamics 365 solutions quickly. The public GitHub repository for Dynamics‑365‑FastTrack‑Implementation‑Assets documents templates, guidance, and scripts that many teams reuse during deployments; because those artifacts sometimes contain sample configuration and automation code, they can expose sensitive metadata or configuration if not handled correctly. On June 20, 2025, a Dynamics‑related information disclosure entry appeared in public vulnerability feeds describing an issue in Dynamics 365 FastTrack Implementation Assets that “allows an unauthorized attacker to disclose information over a network.” Multiple vulnerability trackers list the vulnerability (often under CVE‑2025‑49715 in public registries) with a High base severity and a CVSSv3.1 vector indicating network‑accessible, no privileges required and a high confidentiality impact. (cvedetails.com)
Important: the MSRC URL you supplied rendered a JavaScript page (the Update Guide is delivered as a dynamic web app), which can obscure the plain text advisory when scraped. That page indicator is returned by Microsoft’s site, so administrators should open the MSRC advisory directly in an interactive browser (from a secure admin workstation) to capture the exact remediation KB/CU or guidance for their environment.
Background
Microsoft’s FastTrack program and accompanying implementation assets are designed to help customers deploy and configure Dynamics 365 solutions quickly. The public GitHub repository for Dynamics‑365‑FastTrack‑Implementation‑Assets documents templates, guidance, and scripts that many teams reuse during deployments; because those artifacts sometimes contain sample configuration and automation code, they can expose sensitive metadata or configuration if not handled correctly. On June 20, 2025, a Dynamics‑related information disclosure entry appeared in public vulnerability feeds describing an issue in Dynamics 365 FastTrack Implementation Assets that “allows an unauthorized attacker to disclose information over a network.” Multiple vulnerability trackers list the vulnerability (often under CVE‑2025‑49715 in public registries) with a High base severity and a CVSSv3.1 vector indicating network‑accessible, no privileges required and a high confidentiality impact. (cvedetails.com)Important: the MSRC URL you supplied rendered a JavaScript page (the Update Guide is delivered as a dynamic web app), which can obscure the plain text advisory when scraped. That page indicator is returned by Microsoft’s site, so administrators should open the MSRC advisory directly in an interactive browser (from a secure admin workstation) to capture the exact remediation KB/CU or guidance for their environment.
What the public records say (quick facts)
- Affected component: Dynamics 365 FastTrack Implementation Assets (FastTrack assets and associated implementation artifacts).
- Published / first public entry: reported in mid‑June 2025 (public records show a June 20, 2025 publication date).
- Impact: Exposure of private personal information; confidentiality impact scored high in vendor/aggregator feeds. (cvedetails.com)
- CVSS (as published in trackers): CVSS v3.1 = 7.5 (High) with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. This indicates remote, network access with no privileges or user interaction required to trigger disclosure in the worst case. (incibe.es)
- Public CVE identifier discrepancies: public trackers consistently reference CVE‑2025‑49715 for the FastTrack issue, while the URL you supplied references a different CVE token (CVE‑2025‑55238). The latter identifier does not appear in major public vulnerability feeds at the time of reporting; this suggests either a typo in the URL or that MSRC’s dynamic page may render different IDs depending on context. Administrators should confirm the CVE number on the MSRC page in a browser and cross‑check NVD/CVE aggregation feeds. (msrc.microsoft.com, nvd.nist.gov, incibe.es, msrc.microsoft.com, cvedetails.com, msrc.microsoft.com, nvd.nist.gov, incibe.es)
The MSRC Update Guide entry you supplied returned a dynamic content placeholder (the MSRC site is a JavaScript app). That page may require interactive opening to reveal the KB or exact advisory mapping; it is not uncommon for early advisory URLs or cross‑linked CVE tokens to vary or be updated by the vendor during the disclosure window. At the time of this article, a CVE with the exact number CVE‑2025‑55238 did not appear in major public trackers, whereas the FastTrack disclosure is consistently indexed as CVE‑2025‑49715. Treat the CVE number in the MSRC URL as potentially incorrect or a transient rendering artifact and verify on Microsoft’s site in a browser. (msrc.microsoft.com, cvedetails.com, msrc.microsoft.com, Security Update Guide - Microsoft Security Response Center
