CVE-2025-49745Network attack vector

Content spoofing via undisclosed cross-site scripting

Published Aug 12, 2025 · Updated Feb 13, 2026

Cross-site scripting in Microsoft Dynamics 365 (on-premises) before 9.1.38.10 allows remote attackers to spoof content over a network. Microsoft has not disclosed the affected page, parameter, or input-neutralization failure that permits attacker-controlled content to reach a rendered page. Successful exploitation requires user interaction and permits content disclosure or alteration in the affected user's session without interrupting service.

CVSS severity5.4
Medium
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Microsoft Dynamics 365 (on-premises) before 9.1.38.10 allows remote attackers to spoof content over a network. Microsoft has not disclosed the affected page, parameter, or input-neutralization failure that permits attacker-controlled content to reach a rendered page. Successful exploitation requires user interaction and permits content disclosure or alteration in the affected user's session without interrupting service.

The record

CVE
CVE-2025-49745
Published
Aug 12, 2025
Updated
Feb 13, 2026
Vendor
Microsoft
Product
Microsoft Dynamics 365 (on-premises) version 9.1
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=9.0 <9.1.38.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Microsoft · Microsoft Dynamics 365 (on-premises) version 9.1version=9.0 <9.1.38.10

Published CVSS scores

5.4Microsoft CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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