CVE-2023-38163
Windows Defender Attack Surface Reduction Security Feature Bypass
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.
- Severity
- 7.8 HighCVSS 3.1, CVE List
- Exploit chance
- 0.66%EPSS, 51st percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
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
Affected products
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
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.