CVE-2023-38163
Windows Defender Attack Surface Reduction Security Feature Bypass
Windows Defender Attack Surface Reduction Security Feature Bypass
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Defender Attack Surface Reduction Security Feature Bypass
Windows Defender Attack Surface Reduction Security Feature Bypass
- Record
CVE-2023-38163- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
EUVDEUVD-2023-41988
Windows Defender Attack Surface Reduction Security Feature Bypass
- Record
EUVD-2023-41988- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-h6jp-hfh4-mxpq
Windows Defender Attack Surface Reduction Security Feature Bypass
Windows Defender Attack Surface Reduction Security Feature Bypass
- Record
GHSA-h6jp-hfh4-mxpq- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
NVD
Windows Defender Attack Surface Reduction Security Feature Bypass
- Record
CVE-2023-38163- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - 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-2023-38163 is a high vulnerability (CVSS 7.8) in Microsoft Defender Security Intelligence Updates, published September 12, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.66%, the 51st percentile. No source names a fixed version.