CVE-2023-23389
CVE-2023-23389 is a medium-severity vulnerability in Microsoft Malware Protection Engine with a CVSS 3.x base score of 6.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-367.
Key facts
- Severity: Medium (CVSS 3.x base score 6.3)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-367
- Affected product: Microsoft Malware Protection Engine
- Published:
- Last modified:
Description
Microsoft Defender Elevation of Privilege Vulnerability
Frequently asked questions
- What is CVE-2023-23389?
- Microsoft Defender Elevation of Privilege Vulnerability
- How severe is CVE-2023-23389?
- CVE-2023-23389 has a CVSS 3.x base score of 6.3, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
- Is CVE-2023-23389 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-23389?
- CVE-2023-23389 affects Microsoft Malware Protection Engine. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-23389?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2023-23389 published?
- CVE-2023-23389 was published on 2023-03-14 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:microsoft:malware_protection_engine:1.1.20000.2:*:*:*:*:*:*:*
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