CVE-2026-66301
Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Microsoft Dynamics 365 (On-Premises) Information Disclosure Vulnerability
Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.
- Record
CVE-2026-66301- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2026-56566
Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.
- Record
EUVD-2026-56566- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-7vjr-7vwf-vqhc
Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises...
Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.
- Record
GHSA-7vjr-7vwf-vqhc- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
NVD
Exposure of sensitive information to an unauthorized actor in Microsoft Dynamics 365 (on-premises) allows an authorized attacker to disclose information over a network.
- Record
CVE-2026-66301- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-66301 is a medium vulnerability (CVSS 6.5) in Microsoft Dynamics 365, published August 11, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.00%, the 62nd percentile. No source names a fixed version.