CVE-2023-38163
Windows Defender Attack Surface Reduction Security Feature Bypass
HIGH
7.8
CVSS Score
Published: September 12, 2023 at 04:58 PM UTC
Updated: June 17, 2026 at 06:09 AM UTC
2 products affected across 1 vendorWindows Defender Security Intelligence UpdatesDefender Security Intelligence Updates
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Severity
HIGH7.8
Exploit prediction
EPSS 0.7%
SSVC
No known exploit
Description
Windows Defender Attack Surface Reduction Security Feature Bypass
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
1.0.0 ≤ v < 1.391.1332.0
Affected range stops below 1.391.1332.0, so it looks safe — our inference, not a vendor statement
1.0.0 ≤ v < 1.391.1332.01.0.0
Affected range stops below 1.391.1332.0, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-38163SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.8HIGHmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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