CVE-2024-38166 — An unauthenticated attacker can exploit improper neutralization of input during

An unauthenticated attacker can exploit improper neutralization of input during web page generation in Microsoft Dynamics 365 to spoof over a network by tricking a user to click on a link.

01What is this vulnerability?

An unauthenticated attacker can exploit improper neutralization of input during web page generation in Microsoft Dynamics 365 to spoof over a network by tricking a user to click on a link.

02Affected products

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-08-06T21:38:18.586Z
• Last modified: 2025-07-10T16:33:49.377Z

09References

• msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38166